| Formula / Notation | C5H8 |
|---|---|
| CAS Number | 78-79-5 |
| Molecular Weight | 68.12 |
| Melting Point | -184 °F (NTP, 1992) |
| Boiling Point | 93 °F at 760 mmHg (NTP, 1992) |
| Density | 0.681 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | less than 1 mg/mL at 70.7 °F (NTP, 1992) |
| Appearance | Isoprene, stabilized appears as a clear colorless liquid with a petroleum-like odor. Density 5.7 lb / gal. Flash point -65 °F. Boiling point 93 °F. May polymerize exothermically if heated or cont... |
| Also Known As | 2-methylbuta-1,3-diene; 78-79-5; 2-Methyl-1,3-butadiene; 2-Methylbuta-1,3-diene; Isopentadiene; 2-Methylbutadiene; 2-Methyldivinyl; 1,3-Butadiene, 2-methyl-; beta-Methylbivinyl; 3-Methyl-1,3-butadiene |
| Category | Organic Compounds |
What is Isoprene?
Isoprene can cause cancer according to The World Health Organization's International Agency for Research on Cancer (IARC).
Formula & Notation
IUPAC Name: 2-methylbuta-1,3-diene
Other Names / Synonyms: 2-methylbuta-1,3-diene; 78-79-5; 2-Methyl-1,3-butadiene; 2-Methylbuta-1,3-diene; Isopentadiene; 2-Methylbutadiene; 2-Methyldivinyl; 1,3-Butadiene, 2-methyl-; beta-Methylbivinyl; 3-Methyl-1,3-butadiene
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | -184 °F (NTP, 1992) |
| Boiling Point | 93 °F at 760 mmHg (NTP, 1992) |
| Density | 0.681 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Molecular Weight | 68.12 |
| Solubility | less than 1 mg/mL at 70.7 °F (NTP, 1992) |
| Appearance | Isoprene, stabilized appears as a clear colorless liquid with a petroleum-like odor. Density 5.7 lb / gal. Flash point -65 °F. Boiling point 93 °F. May polymerize exothermically if heated or cont... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Isoprene can cause cancer according to The World Health Organization's International Agency for Research on Cancer (IARC).
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for Isoprene is: C5H8