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78-85-3

78-85-3 structure
78-85-3 structure

Name Methacrolein
Synonyms α-Methylacrolein
Metharolein
2-methyl propenal
2-methylprop-2-enal
METHACROLEIN
Methylacrolein
Methacraldehyde
Methakrylaldehyd
2-Methyl-propenal
Methacrylaldehyde
2-Methylacrolein
EINECS 201-150-1
2-Propenal, 2-methyl-
2-methyl-2-propenal
2-Methylacrylaldehyde
2-methyl-acrolei
Isobutenal
MFCD00006974
2-MethylPropenal
Density 0.8±0.1 g/cm3
Boiling Point 68.0±0.0 °C at 760 mmHg
Melting Point -81 °C
Molecular Formula C4H6O
Molecular Weight 70.090
Flash Point -15.0±0.0 °C
Exact Mass 70.041862
PSA 17.07000
LogP 0.54
Vapour density 2.4 (vs air)
Vapour Pressure 142.3±0.1 mmHg at 25°C
Index of Refraction 1.385
Stability Stable. Incompatible with strong bases, strong oxidising agents, strong reducing agents. Light and air-sensitive. Hazardous polymerisation may occur.
Water Solubility 6 g/100 mL (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OZ2625000
CHEMICAL NAME :
Methacrylaldehyde
CAS REGISTRY NUMBER :
78-85-3
BEILSTEIN REFERENCE NO. :
1209258
LAST UPDATED :
199701
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C4-H6-O
MOLECULAR WEIGHT :
70.10
WISWESSER LINE NOTATION :
VHY1&U1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
140 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
125 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
430 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
Mutation in microorganisms
TEST SYSTEM :
Bacteria - Salmonella typhimurium
DOSE/DURATION :
500 umol/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 93,305,1982
Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06
Signal Word Danger
Hazard Statements H225-H301 + H311-H314
Precautionary Statements P210-P280-P301 + P310-P305 + P351 + P338-P310
Personal Protective Equipment Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes F:Flammable;T:Toxic;
Risk Phrases R11;R24/25;R26;R34
Safety Phrases S16-S26-S36/37/39-S45-S28A
RIDADR UN 2396 3/PG 2
WGK Germany 3
RTECS OZ2625000
Packaging Group II
Hazard Class 3
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