CAS No.7598-35-8 High quality 4-Amino-2-Bromopyridine supplier in China

Assay:99% Appearance:white-off powder or granule ( referto COA) Package:25kg drum or 200kg per drum Storage:Keep in a cool & dry place Transportation:by sea or by air Application:Pharma Intermediate 

Min. Order:1Metric Ton

Supplier:Simagchem Corporation [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine Manufacturer/High quality/Best price/In stock

Assay:98% Appearance:detailed see specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by sea or by air Application:It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. 

Min. Order:1Kilogram

Supplier:Dayang Chem (Hangzhou) Co.,Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Appearance:Pale yellow crystal Package:suitable for delivery Storage:closed and cool Transportation:by sea or air or courier Application:pharmaceutical/pesticide intermediate 

Min. Order:1Gram

Supplier:Jinan Finer Chemical Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 NewblueCHEM- 4-Amino-2-bromopyridine

Assay:99% Appearance:White powder Package:normal packing Storage:Room temperature. Transportation:by sea/by air Application:Pharmaceutical intermediates,API 

Min. Order:1Metric Ton

Supplier:HENAN NEW BLUE CHEMICAL CO.,LTD [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine/ LIDE PHARMA- Factory supply / Best price

Assay:99%min. Appearance:white powder Package:1kg/Export worthy packing; 25kg/drum Storage:Storage: In well-closed container, protected from light and in cool & dry place. Transportation:By Air, By Sea, By courier (door to door, DHL/FedEx/UPS) Application:The product is used for pharmaceutical intermediates.  

Min. Order:1Gram

Supplier:LIDE PHARMACEUTICALS LIMITED [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% purity Appearance:White to pale brown to orange powder Package:According to the need to packing Storage:sealed,dry,low temperature Transportation:air,sea and courier Application:intermediate 

Min. Order:1Gram

Supplier:Shanghai Minstar Chemical Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 High quality 4-Amino-2-Bromopyridine

Assay:99% Appearance:powder or liquid Package:according to customer requirements Storage:store in dry dark and ventilated place Transportation:By Sea/Air/Courier Application:It is an important raw material. 

Min. Order:10Gram

Supplier:Zibo Hangyu Biotechnology Development Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98.00% Appearance:White Crystalline Powder Package:According to client's requirements Storage:keep sealed and keep from direct light Transportation:by sea/by air/by express Application:For pharmaceutical intermediates 

Min. Order:10Gram

Supplier:Hangzhou ZeErRui Chemical Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 Featured products 4-Amino-2-bromopyridine

Assay:99.0% Appearance:liquid Package:Grams, Kilograms Storage:Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials. Transportation:by sea or by air Application:intermediate 

Min. Order:100Gram

Supplier:Chemlyte Solutions [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine CAS:7598-35-8

Assay:99% Appearance:Brown powder Package:According to customer requirements Storage:Avoid light, ventilation and shade Transportation:Sea or Air Application:Medical research field 

Min. Order:1Gram

Supplier:Qingdao Beluga Import and Export Co., LTD [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine 7598-35-8

Assay:99% Appearance:white Package:Bagged or according to your request Storage:2-8掳C Transportation:We will pack and ship according to your requirements Application:The pharmaceutical industry; Food additives; Catalyst; Agrochemical industry; Organic chemicals; Inorganic chemical 

Min. Order:1Kilogram

Supplier:Hebei Nengqian Chemical Import and Export Co., LTD [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99.00% Appearance:White Powder Package:25KG/Drum Storage:Preserve in tight, light-resistant containers Transportation:By Air& By Sea Application:Pharmaceutical 

Min. Order:1Kilogram

Supplier:Golden Pharma Co., Limited [ China (Mainland)]

CAS No.7598-35-8 High quality 2-bromopyridin-4-amine with factory price

Assay:99.00% Appearance:powder Package:according to customers' requirements Storage:store in a cool dry place and keep away from strong Transportation:By air(EMS or EUB or FedEx or TNT ect...) or by sea(FOB or CIF or CNF ect...)or according to your demand. Application:Pharmaceutical intermediates  

Min. Order:1Gram

Supplier:Hangzhou Lingrui Chemical Co.,Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:99% Appearance:detailed see specifications Package:100g/bag,1kg/bag,25kg/drum,according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by air or by ocean shipping Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals 

Min. Order:0

Supplier:Hangzhou Zhongqi chem Co.,Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:99% Appearance:White fine powder Package:according to the clients requirement Storage:Store in dry dark and ventilated place Transportation:Transportation by express, air, sea; port mainly to Qingdao / Tianjin / Shanghai, or according to customer needs to send different ports and aviation. Application:It is an important raw material. 

Min. Order:1Kilogram

Supplier:Shandong Hanjiang Chemical Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:NLT 98% Appearance:White powder Package:Aluminum bag/Carton Drum Storage:Store in a tightly closed container, in a cool and dry place. Transportation:By air Application:Used in producing API 

Min. Order:0

Supplier:Hangzhou Huarong Pharm Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Package:As required Storage:Normal condition Transportation:As normal Application:api intermediate 

Min. Order:0

Supplier:CHANGZHOU HANGYU PHARMACEUTICAL TECHNOLOGY CO., LTD [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:0.98 Appearance:Off white to slight yellow solid Package:1L 5L 10L 25L bottle Storage:Stored in shaded, cool and dry places Transportation:Handle with cares to avoid damaging the packages. Protect them from sunshine or rain. We can send by Fedex, by ship or by plane according to international rules. Application:pharma intermediate 

Min. Order:0

Supplier:Antimex Chemical Limied [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine, 2-bromo-

Assay:99.90% Appearance:solid or liquid Package:drum and bag Storage:in sealed air resistant place Transportation:by sea or air Application:for pharma use 

Min. Order:0

Supplier:Kono Chem Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:HPLC鈮?8% Appearance:powder Storage:Sealed in dry,Room Temperature Transportation:by express or by sea Application:for pharma use 

Min. Order:0

Supplier:Hangzhou Shanyi Biotechnology Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:99% Appearance:Light yellow crystal Package:25kg/Barrel Storage:ln stock Transportation:Express/Sea/Air Application:Chemicals 

Min. Order:0

Supplier:Hangzhou Sartort Biopharma Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98% Application:intermediate 

Min. Order:0

Supplier:SAGECHEM LIMITED [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98% Package:25kg/drum,or as per customers'demand Transportation:air,sea,courier Application:API,Pharmaceutical intermediates 

Min. Order:0

Supplier:GIHI CHEMICALS CO.,LIMITED [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:98% HPLC Package:1kg Application:pharmaceutical intermediates 

Min. Order:0

Supplier:Hangzhou Dingyan Chem Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 2,5-Dichlorofluorobenzene

Assay:鈮?9%HPLC Application:Pharm intermediate 

Min. Order:0

Supplier:HANGZHOU TIANYE CHEMICALS CO., LTD. [ China (Mainland)]

CAS No.7598-35-8 BEST PRICE/4-Amino-2-bromopyridine

Assay:99% Appearance:White powder Package:Standard or as customer's require Storage:Shading, sealed, dry place. Transportation:Delivery by EMS, DHL, FEDEX, UPS, TNT Application:Pharmaceutical Intermediates / Active pharmaceutical ingredients/for chemical research 

Min. Order:10Gram

Supplier:Jilin Artel New Materials Co., LTD [ China (Mainland)]

CAS No.7598-35-8 CAS NO.:7598-35-8

Assay:99% Appearance:White solid Package:drum Storage:Room temperature Transportation:By Sea/Air/DHL Application:Pharmaceutical intermediates 

Min. Order:1Gram

Supplier:Henan Wentao Chemical Product Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine,2-bromo-

Assay:98%min Appearance:Off-white to light yellow powder Package:According to the clients requirement. Storage:Keep in cool place. Transportation:Sea/air/courier Application:Pharmaceutical intermediates 

Min. Order:0

Supplier:Hangzhou J&H Chemical Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 CAS:7598-35-8 C5H5BrN2

Assay:99% Appearance:white poweder Package:Plastic vacuum packaging bag or bucket Storage:under the cool and dry area Transportation:by express or by sea Application:CAS:7598-35-8 C5H5BrN2 technical grade or OLED grade 

Min. Order:500Gram

Supplier:HENAN SUNLAKE ENTERPRISE CORPORATION [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99.0% min Appearance:Highest quality appearance Package:25kgs/drum锛?00kg/drum锛汭BC TANK Storage:Keep in dry and well ventilated warehouse, keep sealed Transportation:By air and by sea Application:Extremely good quality, widely used in Pharmaceutical Industry, Food Industry, agricultural industry etc. 

Min. Order:1Kilogram

Supplier:Hangzhou Johoo Chemical Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 BEST PRICE/4-Amino-2-bromopyridine CAS NO.7598-35-8

Assay:HPLC鈮?8% Appearance:White powder or granule Package:25kg drum/bag Storage:Keep in dry and cool place Transportation:by Sea, air and express Application:Used as a calcium booster in the food industry 

Min. Order:1Metric Ton

Supplier:KAISA GROUP INC [ United States]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Package:box or opp package Storage:cool drum  Transportation:air or sea Application:4-Amino-2-bromopyridine 

Min. Order:1Milligram

Supplier:weifang yangxu group co.,ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-Bromopyridine

Assay:99% Appearance:detailed see specifications Package:25kg/drum;200kg/drum Storage:Keep away of light, cool place Transportation:Sea/air/courier Application:Chemical synthesis 

Min. Order:0

Supplier:Xiamen Hisunny Chemical Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 7598-35-8

Assay:98% Appearance:powder Package:25Kg/Drum or as demand Storage:Store in a cool, dry, ventilated place Transportation:BY COURIER/AIR/SEA Application:Used in organic synthesis. 

Min. Order:0

Supplier:Kunshan Push Trading Co.,LTD [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99 Appearance:powder, or liquid Package:Bottle, barrel, cargo, container, etc. Storage:Stored in room temperature, ventilated place Transportation:By air, ship, express, etc. Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals 

Min. Order:0

Supplier:LEAP CHEM Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99 Appearance:off white Package:drum Storage:Dry,cool place Transportation:by air/sea/express Application:active pharmaceutical ingredients 

Min. Order:0

Supplier:Hubei Vanz Pharm Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 4-amino-2-bromopyridine

Assay:99 Application:7598-35-8 

Min. Order:0Metric Ton

Supplier:Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-Bromopyridine

Assay:COA Appearance:COA Storage:in stock Application:MSDS/TDS 

Min. Order:0

Supplier:Aecochem Corp. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine CAS 7598-35-8 with high quality

Assay:99% Appearance:powder Package:100g/ bag, 2 kg/ bag, 25kg/ carton or as required Storage:Store in sealed containers at cool & dry place. Protect from light, moisture and pest infestation. Transportation:By DHL, TNT, FedEx, HKEMS, UPS, Etc Application:Pharmaceutical Raw Materials; Pharmaceutical Intermediate, etc  

Min. Order:100Gram

Supplier:Wuhan 90000 Lithium Industry and Trade Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Pyridinamine, 2-bromo-

Assay:99% Appearance:Colorless liquid Package:25kg/drum Storage:Preserve in well-closed, light-resistant and airtight containers. Transportation:By sea  Application:syntheses material intermediates 

Min. Order:1Kilogram

Supplier:Henan Sinotech Import&Export Corporation [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine/Manufacturer/High quality/Best price

Assay:98% Appearance:detailed see specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place Transportation:transport by sea or by air Application:Pyridine series; Halides; Pyridines; Fluorine series; custom synthesis molecular; API Intermediates. 

Min. Order:1Gram

Supplier:Shanghai Massive Chemical Technology Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 Top Purity CAS 7598-35-8 with fast shipping

Assay:99% Appearance:White powder Package: [Packaging]20mg, 50mg,100mg,1g,10g,100g,according to customers' requirements Storage: should be stored in a well-closed container at low temperature, keep away from moisture, heat and light. Transportation:1. Samples 1kg-10kg are shipped by international express. 2. 50kg-100kg of goods are transported by dedicated line logistics. 3. Cargo 100kg-1ton is transported by dedicated line logistics. Application:Chemical raw materials, pharmaceutical intermediates, cosmetic raw materials, etc. 

Min. Order:1Kilogram

Supplier:Zhuozhou Wenxi import and Export Co., Ltd [ China (Mainland)]

CAS No.7598-35-8 Fine Intermediate, 4-Amino-2-bromopyridine CAS:7598-35-8

Assay:99.0% Appearance:White to pale brown to orange Crystalline Powder or Powder Package:0.5kgs/Al-foil bag 1.0kgs/Al-foil bag 2.0kgs/Al-foil Storage:room temperature Transportation:By air; by sea; or as customers' request. Application:Used as pharmaceutical/organic Intermediate 

Min. Order:1Kilogram

Supplier:Baoji Guokang Healthchem co.,ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Appearance:powder/liquid Package:According to client's requirements Storage:Store in dry, dark and ventilated place. Transportation:by sea/by air/by express Application:pharmaceutical intermediates 

Min. Order:1Gram

Supplier:Hangzhou KieRay Chem Co.,Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:97% Appearance:Powder or liquid Package:According to customer Storage:Store in a tightly closed container, in a cool and dry place. Transportation:Fedex,DHL,TNT,BY SEA and BY AIR Application:Medicinal Chemistry Biomedicine Pharmaceutical intermediates Chemistry experiment Biological experiments Chemical reagent For R&D use only. 

Min. Order:10Milligram

Supplier:Amadis Chemical Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 2-Bromo-4-aminopyridine

Assay:98%min Appearance:white or light yellow crystalline powder Package:As customer request Storage:Store in a cool,dry place and keep away from direct strong light Transportation:As customer request Application:Used for research and industrial manufacture. 

Min. Order:0Metric Ton

Supplier:Triumph International Development Limilted [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Haccp,,Halal,SC US FDA GMP ISO14001 Appearance:As per Certificate of analysis and our TDS, MSDS Package:Export standard and according to the clients requirement Storage:Store in dry, dark and ventilated place;ISO / Kosher /GMP licence commercial bulk capacity factory in China Transportation:By AIR or by SEA GMP licence / US-FDA,South Korea-KFDA Application:It is an important raw material and intermediate for chemical industry. 

Min. Order:5Kiloliter

Supplier:Chemwill Asia Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:鈮?8% Appearance:Liquid Package:Glass bottle or drum Storage:2-8鈩?nbsp;Transportation:RT Application:IMPURTY  

Min. Order:50Milligram

Supplier:Shenzhen Regent Biochemistry Tech Co., Ltd. [ Hong Kong,China]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98% Appearance:White or off-white Solid Package:According to the demand of customer Storage:Sealed, dry, microtherm , avoid light and smell. Transportation:by air or by sea Application:Organic synthesis 

Min. Order:1Kilogram

Supplier:Henan Allgreen Chemical Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 2-bromopyridin-4-amine

Assay:99.3% Appearance:white or Almost colorless Package:2.5kg or 5kg Transportation:Air freight, sea freight, and express delivery Application:intermediate 

Min. Order:4Kilogram

Supplier:SHANGHAI T&W PHARMACEUTICAL CO., LTD. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Appearance:White to light yellow to light orange fluffy powder Package:according to your requirement Storage:White to light yellow to light orange fluffy powder Transportation:by air /by train/by sea Application:lab 

Min. Order:1Kilogram

Supplier:Jiangsu Xinsu New Materials Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 Acmec 4-Amino-2-bromopyridine 100g

Assay:98% Appearance:See the datasheet Package:100g Storage:RT,Dark Transportation:By Express, Air and Road Application:Analytical reagent, biochemical reagent, standard 

Min. Order:1bottle

Supplier:Shanghai Acmec Biochemical Technology Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Appearance:light yellow solid  Storage:Sealed in dry,Room Temperature Application:Chemical raw materials, pharmaceutical intermediates 

Min. Order:1Kilogram

Supplier:Ningbo Syntame Biotech Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 Factory Supply 4-Pyridinamine, 2-bromo-

Assay:99% Appearance:powder or granule ( refer to COA) Package:25kgs/fiber drum Storage:Keep in a cool & dry place Transportation:by sea or by air Application:Librium, Valium 

Min. Order:0Metric Ton

Supplier:Ality Chemical Corporation [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98% Appearance:solid or liquid Package:According to customer鈥榮 requirement Storage:Keep in a cool & dry place Transportation:by sea or air Application:Pharma Intermediate 

Min. Order:0

Supplier:Xiamen AmoyChem Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:96% Appearance:white crystals powder Package:according to the clients requirement Storage:Room temperature with sealed well Transportation:by sea or by air Application:Use as primary and secondary intermediate 

Min. Order:0

Supplier:BOC Sciences [ United States]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Package:As client requirement Transportation:Express, Air , Sea shipment Application:Pharmaceutical Intermediates 

Min. Order:0

Supplier:Hunan chemfish Pharmaceutical co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98.5% Appearance:white/off-white or light yellow Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Storage:Store in cool and dry place, keep away from strong light and heat. Transportation:by courier, by air, by sea Application:This product can be used in food/pharmaceutical/cosmetical industry 

Min. Order:0

Supplier:Suzhou Health Chemicals Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine 7598-35-8

Assay:98% Appearance:solid or liquid Package:Foil bag; Drum; Plastic bottle Storage:in sealed air resistant place Transportation:by sea or air Application:Pharma;Industry;Agricultural 

Min. Order:0

Supplier:Hunan Russell Chemicals Technology Co.,Ltd [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:99% Package:DRUM Storage:room temperature Transportation:AIR/SEA Application:mainly for medical use for R&D purpose use only 

Min. Order:0

Supplier:Enke Pharma-tech Co.,Ltd. 锛圕angzhou, China 锛?/a> [ China (Mainland)]

CAS No.7598-35-8 2-bromopyridin-4-amine

Assay:99% Appearance:white powder Package:drum or based on customers' requirement Storage:normal temperature storage Transportation:by sea, by air Application:We have different specifications for different applications 

Min. Order:0

Supplier:Bluecrystal chem-union [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine manufacturer

Assay:97% Appearance:White powder Package:According client's requirements Storage:keep sealed and keep from direct light Transportation:According client's requirements Application:pharmaceutical 

Min. Order:0

Supplier:Shanghai Yuanye Bio-Technology Co., Ltd. [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Assay:98% Package:Kilograms/MT Transportation:According to customer request Application:Pharmaceutical field 

Min. Order:0

Supplier:Nanjing Fred Technology Co.,Ltd. [ China (Mainland)]

CAS No.7598-35-8 2-Bromo-4-pyridinamine cas no. 7598-35-8 98%

Assay:0.98 Package:Grams, Kilograms Transportation:According to customer request Application:For R&D 

Min. Order:0

Supplier:Win-Win chemical Co.Ltd [ China (Mainland)]

CAS No.7598-35-8 4-AMINO-2-BROMOPYRIDINE

Assay:99% Application:api 

Min. Order:0

Supplier:Shandong Mopai Biotechnology Co., LTD [ China (Mainland)]

CAS No.7598-35-8 4-Amino-2-bromopyridine

Min. Order:0

Supplier:Taizhou Crene Biotechnology co.ltd [ China (Mainland)]