464953
异戊二烯
≥99%
别名:
2-甲基-1,3-丁二烯
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线性分子式:
CH2=CHC(CH3)=CH2
化学文摘社编号:
分子量:
68.12
EC Number:
201-143-3
UNSPSC Code:
12352100
PubChem Substance ID:
Beilstein/REAXYS Number:
969158
MDL number:
InChI key
RRHGJUQNOFWUDK-UHFFFAOYSA-N
InChI
1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
SMILES string
CC(=C)C=C
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 %
Quality Level
bp
34 °C (lit.)
mp
−146 °C (lit.)
density
0.681 g/mL at 25 °C (lit.)
storage temp.
2-8°C
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Application
异戊二烯可在仲丁基锂引发下与苯乙烯连续阴离子聚合合成不对称聚苯乙烯-嵌段聚异戊二烯 (PS-b-PI) 二嵌段共聚物。
Packaging
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
存储类别
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-65.2 °F - closed cup
flash_point_c
-54 °C - closed cup
法规信息
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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)
Russell K Monson et al.
Plant, cell & environment, 36(3), 503-516 (2012-09-25)
Isoprene (2-methyl-1,3-butadiene) is emitted from many plants and it appears to have an adaptive role in protecting leaves from abiotic stress. However, only some species emit isoprene. Isoprene emission has appeared and been lost many times independently during the evolution
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
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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