464953
Isoprene
≥99%
Synonym(s):
2-Methyl-1,3-butadiene
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About This Item
Linear Formula:
CH2=CHC(CH3)=CH2
CAS Number:
Molecular Weight:
68.12
EC Number:
201-143-3
UNSPSC Code:
12352100
PubChem Substance ID:
Beilstein/REAXYS Number:
969158
MDL number:
vapor density
2.35 (vs air)
vapor pressure
8.82 psi ( 20 °C)
assay
≥99%
form
liquid
autoignition temp.
428 °F
contains
100-150 ppm p-tert-butylcatechol as inhibitor
expl. lim.
10 %
refractive index
n20/D 1.422 (lit.)
bp
34 °C (lit.)
mp
−146 °C (lit.)
density
0.681 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/h4H,1-2H2,3H3
InChI key
RRHGJUQNOFWUDK-UHFFFAOYSA-N
Application
Isoprene may be used in the synthesis of asymmetric polystyrene-block-polyisoprene (PS-b-PI) diblock copolymers via sequential anionic polymerization with styrene in the presence of sec-butyllithium as initiator.
Packaging
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-65.2 °F - closed cup
flash_point_c
-54 °C - closed cup
Regulatory Information
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Morphology and elasticity of polystyrene-block-polyisoprene diblock copolymers in the melt.
Haenelt TG, et al.
Korea-Australia Rheology Journal, 26(3), 263-275 (2014)
Thomas D Sharkey et al.
Annals of botany, 101(1), 5-18 (2007-10-09)
Some, but not all, plants emit isoprene. Emission of the related monoterpenes is more universal among plants, but the amount of isoprene emitted from plants dominates the biosphere-atmosphere hydrocarbon exchange. The emission of isoprene from plants affects atmospheric chemistry. Isoprene
Is it useful to ask why plants emit isoprene?
Thomas D Sharkey
Plant, cell & environment, 36(3), 517-520 (2012-11-14)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 464953-400L | 04061837457180 |
| 464953-90L | 04061838111302 |
| 464953-200L-DR | 04061837457173 |
| 464953-200L | 04061838220035 |
| 464953-PZ | 04061837457203 |