CAS No.:6974-12-5

TOXICITY DATA with REFERENCE：

1.		skn-rbt 1 mg/24H		AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 10 (1954),61.
2.		eye-rbt 50 µg open SEV		AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 10 (1954),61.
3.		orl-rat LD50:75 mg/kg		AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 10 (1954),61.
4.		ihl-mus LCLo:1260 mg/m3/10M		NDRC**    National Defense Research Committee, Office of Scientific Research and Development, Progress Report NDCrc-132,Aug ,1942.
5.		ipr-mus LDLo:4 mg/kg		CBCCT*    “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 5 (1953),338.

Consensus Reports：

 

SAFETY PROFILE：

Poison by ingestion and intraperitoneal routes. Moderately toxic by inhalation. A skin and severe eye irritant. When heated to decomposition it emits toxic fumes of Br⁻. See also BROMIDES.
Hazard Codes:
T: Toxic
Risk Statements about 1,4-Dibromo-2-butene (6974-12-5):
R23/25 Toxic by inhalation and if swallowed. 
R34 Causes burns. 
Safety Statements about 1,4-Dibromo-2-butene (6974-12-5):
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S28A After contact with skin, wash immediately with plenty of water. 
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection. 
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). 
Attentions:
1. Storage: Do not store in direct sunlight. Store in a tightly closed container. Store in a dry area. Corrosives area. Keep refrigerated. (Store below 4°C/39°F.)
2. Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.

Standards and Recommendations：

 

Analytical Methods：