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Isoprene

analytical standard

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

  •  EC Number 201-143-3

  •  MDL number MFCD00008600

  •  PubChem Substance ID 329758612

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, Alpha Sort, Analytical Standards, Analytical/Chromatography, Chinese Food Contact Materials Regulation GB 9685 2016,
Quality Level   100
grade   analytical standard
vapor density   2.35 (vs air)
vapor pressure   8.82 psi ( 20 °C)
assay   ≥99.5% (GC)
form   neat
autoignition temp.   428 °F
shelf life   limited shelf life, expiry date on the label
contains   ~0.02% 4-tert-butylcatechol as stabilizer
expl. lim.   10 %
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
refractive index   n20/D 1.422 (lit.)
  n20/D 1.422
bp   34 °C (lit.)
mp   −146 °C (lit.)
density   0.681 g/mL at 20 °C
  0.681 g/mL at 25 °C (lit.)
Featured Industry   Cleaning Products
Cosmetics
Environmental
Food and Beverages
Personal Care
Petroleum
format   neat
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

General description

Isoprene is a reactive aliphatic hydrocarbon that originates as a byproduct of cholesterol synthesis.

Application

Isoprene may be used as an analytical reference standard for the quantification of the analyte in human breath samples using substrate-integrated hollow waveguide mid-infrared sensors and thermal desorption gas chromatography with ultraviolet detection.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN1218 - class 3 - PG 1 - Isoprene, stabilized
WGK Germany 
WGK 3
Flash Point(F) 
-65.2 °F
Flash Point(C) 
-54 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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