3333-52-6

Name TETRAMETHYLSUCCINONITRILE
CAS 3333-52-6
EINECS(EC#) 604-604-1
Molecular Formula C8H12N2
MDL Number MFCD00040683
Molecular Weight 136.19
MOL File 3333-52-6.mol
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Chemical Properties

Appearance Colorless, solid; odorless. Insoluble in water.
Melting point  168°C
Boiling point  240.49°C (rough estimate)
density  1.0700
refractive index  1.4436 (estimate)
storage temp.  Sealed in dry,Room Temperature
solubility  Chloroform (Soluble), DMSO (Slightly)
Water Solubility  Insoluble in water
form  solid
color  White to Almost white
InChI 1S/C8H12N2/c1-7(2,5-9)8(3,4)6-10/h1-4H3
InChIKey ZVQXQPNJHRNGID-UHFFFAOYSA-N
SMILES N#CC(C)(C)C(C)(C)C#N
Uses
Blowing agent for vinyl foam production.
EPA Substance Registry System Tetramethylsuccinonitrile (3333-52-6)

Safety Data

Symbol(GHS)  Skull and Crossbones (GHS06)Health Hazard (GHS08)
GHS06,GHS08
Signal word  Danger
Hazard statements  H300-H311+H331-H371-H373
Precautionary statements  P280-P301+P310+P330-P302+P352+P312-P304+P340+P311
Hazard Codes  T
Risk Statements 
Safety Statements 
OEB B
OEL TWA: 3 mg/m3 (0.5 ppm) [skin]
RIDADR  3439
WGK Germany  3
RTECS  WN4025000
HS Code  2926.90.5050
HazardClass  6.1(a)
PackingGroup  II
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Oral
Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
STOT RE 2 Inhalation
STOT SE 2 Inhalation
Safety Profile
Poison by ingestion, intraperitoneal, and intravenous routes. An experimental teratogen. A human skin irritant and allergen. In the preparation of sponge rubber, an azo compound is used that decomposes to form tetramethylsuccinonitrile or TMSN. Rats exposed to a concentration of 90 ppm exhbit their first convulsion after 1.5-2 hours or less. Rats exposed to concentration of 5.5 pprn exhbited their first convulsions in 27-31 hours and were dead in 31-46 hours. Absorbed by skin. The fatal dose in humans is thought to be about 25 mg/kg of body weight. TSN is slowly detoxified by the body. This nitrile is different from other nitriles in that duosulfate is a poor antidote for intoxication. When heated to decomposition it emits toxic fumes of CNand NOx. See also NITRILES and CYANIDE.
Hazardous Substances Data 3333-52-6(Hazardous Substances Data)
IDLA 5 ppm

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