3-Methyl-2-butenal

Modify Date: 2025-08-20 10:52:40

3-Methyl-2-butenal Structure
3-Methyl-2-butenal structure
Common Name 3-Methyl-2-butenal
CAS Number 107-86-8 Molecular Weight 84.116
Density 0.8±0.1 g/cm3 Boiling Point 134.0±0.0 °C at 760 mmHg
Molecular Formula C5H8O Melting Point -20°C
MSDS Chinese USA Flash Point 33.9±0.0 °C
Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06
Signal Word Danger

 Names

Name 3-methylbut-2-enal
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.8±0.1 g/cm3
Boiling Point 134.0±0.0 °C at 760 mmHg
Melting Point -20°C
Molecular Formula C5H8O
Molecular Weight 84.116
Flash Point 33.9±0.0 °C
Exact Mass 84.057518
PSA 17.07000
LogP 1.07
Vapour Pressure 8.3±0.2 mmHg at 25°C
Index of Refraction 1.411
Storage condition 2-8°C
Water Solubility soluble

 Safety Information

Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06
Signal Word Danger
Hazard Statements H226-H302-H314-H317-H331
Precautionary Statements P261-P280-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xi:Irritant;
Risk Phrases R10;R36/37/38
Safety Phrases S26-S36-S37/39-S16
RIDADR UN 1989 3/PG 3
WGK Germany 2
Packaging Group III
Hazard Class 3
HS Code 2912190090

 Synthetic Route

 Customs

HS Code 2912190090
Summary 2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

 Articles2

More Articles
Electrochemical dimerization of 3-methylcrotonaldehyde. Mandell L, et al.

J. Org. Chem. 36(12) , 1683-85, (1971)

Geometric and electronic effects in the selective hydrogenation of a, ß-unsaturated aldehydes over zeolite-supported metals. Blackmond DG, et al.

J. Catal. 131(2) , 401-11, (1991)

 Synonyms

3-Methylcrotonaldehyde
2-Butenal, 3-methyl-
3-Methyl-2-butenal
β,β-Dimethylacrolein
MFCD00010291
b,b-Dimethylacrolein
3,3-Dimethylacrylaldehyde,3,3-Dimethylacrolein,3-Methylcrotonaldehyde
3,3-Dimethylacrolein
EINECS 203-527-6
Senecialdehyde
β-Methylcrotonaldehyde
3,3-Dimethylacrylaldehyde,3,3-Dimethylacrolein,3-Methyl-2-butenal
3-Methylbut-2-enal
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