EMAIL THIS PAGE TO A FRIEND
I19551 Sigma-Aldrich

Isoprene

99%, contains <1000 ppm p-tert-butylcatechol as inhibitor

Synonym: 2-Methyl-1,3-butadiene

  • CAS Number 78-79-5

  • Linear Formula CH2=CHC(CH3)=CH2

  • Molecular Weight 68.12

  •  Beilstein/REAXYS Number 969158

  •  MDL number MFCD00008600

  •  PubChem Substance ID 24895956

  •  NACRES NA.22

Purchase

Properties

Related Categories Acyclic, Alkenes, Building Blocks, Cell Biology, Chemical Synthesis,
Quality Level   200
vapor density   2.35 (vs air)
vapor pressure   8.82 psi ( 20 °C)
assay   99%
autoignition temp.   428 °F
contains   <1000 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

Description

Application

Isoprene in the presence of sec-butyllithium as an initiator can undergo sequential anionic polymerization with styrene and methyl methacrylate to form polystyrene-block-polyisoprene-block-poly(methylmethacrylate) (SIM) and polyisoprene-block-polystyrene-block-poly(methyl methacrylate) (ISM), two asymmetric triblock terpolymers. It is also used in the asymmetric synthesis of polystyrene-block-polyisoprene (PS-b-PI) diblock copolymers.

Packaging

100, 500 mL in Sure/Seal™

18 L in Kilo-Lab™

View returnable container options.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN1218 - class 3 - PG 1 - Isoprene, stabilized
WGK Germany 
WGK 1
Flash Point(F) 
-65.2 °F - closed cup
Flash Point(C) 
-54 °C - closed cup

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number
Protocols & Articles

Related Content

Chemical Synthesis

Browse our portfolio for organic and inorganic chemicals for chemical synthesis, medicinal chemistry, and many other applications.
Keywords: Medicinal chemistry

Peer-Reviewed Papers
15

References

Related Products

related product

Product #

Description

Add to Cart

08168 Timestrip Plus 8 °C

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?