Allene

Modify Date: 2025-08-20 21:33:20

Allene Structure
Allene structure
Common Name Allene
CAS Number 463-49-0 Molecular Weight 40.06390
Density 0.546 g/cm3 Boiling Point -34 °C
Molecular Formula C3H4 Melting Point -136ºC(lit.)
MSDS N/A Flash Point N/A

 Names

Name allene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.546 g/cm3
Boiling Point -34 °C
Melting Point -136ºC(lit.)
Molecular Formula C3H4
Molecular Weight 40.06390
Exact Mass 40.03130
LogP 0.95730
Vapour density 1.42 (20 °C, vs air)
Vapour Pressure 5020mmHg at 25°C
Index of Refraction 1.339
InChIKey IYABWNGZIDDRAK-UHFFFAOYSA-N
SMILES C=C=C
Storage condition 2-8°C

 Safety Information

Hazard Codes F+: Highly flammable;F: Flammable;
Risk Phrases R12
Safety Phrases 9-16-33
RIDADR UN 2200 2
WGK Germany 3
Hazard Class 2.1
HS Code 2901299090

 Synthetic Route

 Customs

HS Code 2901299090
Summary 2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

 Synonyms

PROPADIENE
1,2-propadiene
EINECS 207-335-3
1,2-propanediene
sym-Allylene
propardiene
methylene ethylene
MAPPGAS
Allene
Isoallylene
CH2=C=CH2
propadienylidene
MFCD00008566
The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.