CAS No.:110-19-0

TOXICITY DATA with REFERENCE：

1.		skn-rbt 500 mg open MLD		UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 11/3 ,1971.
2.		skn-rbt 500 mg/24H MOD		FCTXAV    Food and Cosmetics Toxicology. 16 (1978),637.
3.		eye-rbt 500 mg/24H MOD		FCTXAV    Food and Cosmetics Toxicology. 16 (1978),637.
4.		orl-rat LD50:13,400 mg/kg		NPIRI*    Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. 1 (1974),8.
5.		ihl-rat LCLo:8000 ppm/4H		AIHAAP    American Industrial Hygiene Association Journal. 23 (1962),95.
6.		orl-rbt LD50:4763 mg/kg		IMSUAI    Industrial Medicine and Surgery. 41 (1972),31.

Consensus Reports：

Reported in EPA TSCA Inventory.

SAFETY PROFILE：

Mildly toxic by ingestion and inhalation. A skin and eye irritant. Upon absorption by the body it can hydrolyze to acetic acid and isobutanol. Highly flammable liquid. A very dangerous fire and moderate explosion hazard when exposed to heat, flame, or oxidizers. To fight fire, use alcohol foam, CO₂, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also Esters and n-butyl acetate.
Hazard Codes: F
Risk Statements: 11-66
R11:Highly flammable. 
R66:Repeated exposure may cause skin dryness or cracking.
Safety Statements: 16-23-25-29-33
S16:Keep away from sources of ignition. 
S23:Do not breathe vapour. 
S25:Avoid contact with eyes. 
S29:Do not empty into drains. 
S33:Take precautionary measures against static discharges.
RIDADR: UN 1213 3/PG 2
WGK Germany: 1
RTECS: AI4025000
HazardClass: 3
PackingGroup: II

Standards and Recommendations：

OSHA PEL: TWA 150 ppm
ACGIH TLV: TWA 150 ppm
DFG MAK: 100 ppm (480 mg/m³)
DOT Classification:  3; Label: Flammable Liquid

Analytical Methods：

For occupational chemical analysis use NIOSH: Esters I, 1450.