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110930

3-Methyl-1,2-butadiene

97%

Synonym(s):

1,1-Dimethylallene

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About This Item

Linear Formula:
(CH3)2C=C=CH2
CAS Number:
598-25-4
Molecular Weight:
68.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24846867
EC Number:
209-926-1
Beilstein/REAXYS Number:
1697090
MDL number:
MFCD00008896
Assay:
97%
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vapor pressure

6.87 psi ( 20 °C)

Quality Segment

100

assay

97%

refractive index

n20/D 1.419 (lit.)

bp

40-41 °C (lit.)

mp

−148 °C (lit.)

density

0.694 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(C)=C=C

InChI

1S/C5H8/c1-4-5(2)3/h1H2,2-3H3

InChI key

PAKGDPSCXSUALC-UHFFFAOYSA-N

Application

3-Methyl-1,2-butadiene (1,1-dimethylallene) has been used to study the photo-induced reaction of 1,1-dimethylallene with the cyanoarenes 1,2,4,5-tetracyanobenzene, 1,4-dicyanobenzene and 1,4-dicyanonaphthalene in the presence of methanol as nucleophile.

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

10.4 °F - closed cup

flash_point_c

-12 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

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