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Key Documents

M32801

Sigma-Aldrich

2-Methyl-1-buten-3-yne

99%

Synonym(s):

Isopropenylacetylene

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About This Item

Linear Formula:
H2C=C(CH3)C≡CH
CAS Number:
Molecular Weight:
66.10
Beilstein/REAXYS Number:
969175
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:

vapor pressure

8.96 psi ( 20 °C)

assay

99%

form

liquid

refractive index

n20/D 1.416 (lit.)

bp

32 °C (lit.)

mp

−113 °C (lit.)

density

0.695 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(=C)C#C

InChI

1S/C5H6/c1-4-5(2)3/h1H,2H2,3H3

InChI key

BOFLDKIFLIFLJA-UHFFFAOYSA-N

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signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

21.2 °F - closed cup

flash_point_c

-6 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves


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