Isoprene
SIAL/59240 - analytical standard
Synonym: 2-
CAS Number: 78-79-5
Empirical Formula (Hill Notation): C5H8
Molecular Weight: 68.12
EC Number: 201-143-3
MDL Number: MFCD00008600
Linear Formula: CH2=CHC(CH3)=CH2
Product Type: Chemical
application(s) | cleaning products cosmetics environmental food and beverages personal care petroleum |
assay | ≥99.5% (GC) |
autoignition temp. | 428 °F |
bp | 34 °C (lit.) |
contains | ~0.02% 4-tert-butylcatechol as stabilizer |
density | 0.681 g/mL at 20 °C |
0.681 g/mL at 25 °C (lit.) | |
expl. lim. | 10 % |
format | neat |
grade | analytical standard |
InChI | 1S/C5H8/c1-4-5(2)3/h4H,1- |
InChI key | RRHGJUQNOFWUDK-UHFFFAOYSA |
mp | −146 °C (lit.) |
Quality Level | 100 ![]() |
refractive index | n |
n |
|
shelf life | limited shelf life, expiry date on the label |
SMILES string | CC(=C)C=C |
storage temp. | 2-8°C |
technique(s) | gas chromatography (GC): suitable |
HPLC: suitable | |
vapor density | 2.35 (vs air) |
vapor pressure | 8.82 psi ( 20 °C) |
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. |
Application: | Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. |
General description: | Isoprene is a reactive aliphatic hydrocarbon that originates as a byproduct of cholesterol synthesis. |
General description: | This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H224 - H341 - H350 - H412 |
Precautionary statements | P202 - P210 - P233 - P273 - P308 + P313 - P403 + P233 |
Hazard Codes | F+,T,N |
Risk Statements | 45-12-51/53-68 |
Safety Statements | 53-45-61 |
RIDADR | UN1218 - class 3 - PG 1 - Isoprene, stabilized |
WGK Germany | WGK 3 |
Flash Point(F) | -65.2 °F - closed cup |
Flash Point(C) | -54 °C - closed cup |
Purity | ≥99.5% (GC) |
bp | 34 °C (lit.) |
mp | −146 °C (lit.) |
Density | 0.681 g/mL at 20 °C; 0.681 g/mL at 25 °C (lit.) |
Refractive Index | n |
Storage Temp. | 2-8°C |
UNSPSC | 41116107 |