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Isoprene

≥99%

Synonym(s):

2-Methyl-1,3-butadiene

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About This Item

Linear Formula:
CH2=CHC(CH3)=CH2
CAS Number:
78-79-5
Molecular Weight:
68.12
Beilstein/REAXYS Number:
969158
EC Number:
201-143-3
MDL number:
MFCD00008600
UNSPSC Code:
12352200
PubChem Substance ID:
24870237

vapor density

2.35 (vs air)

Quality Level

100

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

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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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pictograms

FlameHealth hazard
GHS02,GHS08

signalword

Danger

Hazard Classifications

Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-65.2 °F - closed cup

flash_point_c

-54 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
H Koc et al.
Journal of breath research, 5(3), 037102-037102 (2011-06-10)
Isoprene is one of the most abundant endogenous volatile organic compounds (VOCs) contained in human breath and is considered to be a potentially useful biomarker for diagnostic and monitoring purposes. However, neither the exact biochemical origin of isoprene nor its
Russell K Monson et al.
The New phytologist, 195(3), 541-559 (2012-06-29)
The leaves of many plants emit isoprene (2-methyl-1,3-butadiene) to the atmosphere, a process which has important ramifications for global and regional atmospheric chemistry. Quantitation of leaf isoprene emission and its response to environmental variation are described by empirically derived equations
Michaela Stieglmeier et al.
International journal of systematic and evolutionary microbiology, 64(Pt 8), 2738-2752 (2014-06-08)
A mesophilic, neutrophilic and aerobic, ammonia-oxidizing archaeon, strain EN76(T), was isolated from garden soil in Vienna (Austria). Cells were irregular cocci with a diameter of 0.6-0.9 µm and possessed archaella and archaeal pili as cell appendages. Electron microscopy also indicated
Tomohisa Kuzuyama
Bioscience, biotechnology, and biochemistry, 66(8), 1619-1627 (2002-10-02)
Isoprenoids are synthesized by consecutive condensations of their five-carbon precursor, isopentenyl diphosphate, to its isomer, dimethylallyl diphosphate. Two pathways for these precursors are known. One is the mevalonate pathway, which operates in eucaryotes, archaebacteria, and cytosols of higher plants. The
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