Dimethyl acetylenedicarboxylate cas no:762-42-5
Synonyms: DMAD; dimethyl butynedioate; Acetylenedicarboxylic acid dimethyl ester~Butynedioic acid dimethyl ester~DMAD; DIMETHYL ACETYLENEDICARBOXYLATE (DMADC)
NameDimethyl acetylenedicarboxylate
CAS762-42-5
SynonymsDMAD; dimethyl butynedioate; Acetylenedicarboxylic acid dimethyl ester~Butynedioic acid dimethyl ester~DMAD; DIMETHYL ACETYLENEDICARBOXYLATE (DMADC)
EINECS(EC#)212-098-4
Molecular FormulaC6H6O4
Molecular Weight142.11
Appearanceclear colorless to light yellow liquid
refractive index1.446-1.448
storage tempKeep away from heat, sparks, and flame. Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
Sensitive Light Sensitive
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass8
Hazard C:Corrosive
Risk R22;R34
Safety
Poison by ingestion. A dienophile. Explosive reaction with 1-methylsilacyclopenta-2,4-diene at 150°C. Octakis(trifluorophosphine)dirhodium catalyzes explosive polymerization of the acid above 20°C. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes:?
C
Risk Statements: 34-22?
R34: Causes burns.?
R22: Harmful if swallowed.
Safety Statements: 23-26-27-36/37/39-45?
S23: Do not breathe vapour.?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S27: Take off immediately all contaminated clothing.?
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 whenever possible.)
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
RTECS: ES0175000
F: 8-19
HazardClass: 8
PackingGroup? of Dimethyl acetylenedicarboxylate (CAS NO.762-42-5): III
HS Code 29171990
| Organism |
Test Type |
Route |
Reported Dose (Normalized Dose) |
Effect |
Source |
| mouse |
LD50 |
oral |
550mg/kg (550mg/kg) |
BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
BEHAVIORAL: ATAXIA
BEHAVIORAL: COMA |
Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 28(6), Pg. 55, 1984. |
| rat |
LDLo |
oral |
50mg/kg (50mg/kg) |
? |
National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. Vol. 5, Pg. 13, 1953. |
