Isopentane
CAS 78-78-4
EC 201-142-8
Formula C5H12
MW 72.15 g/mol
Solvents Personal Care & CosmeticsFood & NutritionOil, Gas & EnergyPharmaceuticals & Healthcare CatalysisFlavoring & AcidulantSolvent & Carrier
Description
Isopentane (CAS 78-78-4, EC 201-142-8), also known as R-601a and iso-pentane, is a five-carbon branched alkane supplied as a colourless liquid. It carries no E-code designation and is classified under HS code 29011000 within the hydrocarbons category.
In food and fragrance manufacturing, isopentane functions as a solvent and carrier, dissolving flavour compounds and facilitating their controlled release in finished formulations. In refining and petrochemical processing, it acts as a catalyst diluent and blending component, where its low boiling point supports precise process temperature control.
Isopentane is available in technical and high-purity grades, with select batches meeting FCC specifications for food-contact applications. The substance is registered under REACH and subject to standard European hazardous substance handling requirements. Packaging is typically supplied in drums or isotanks depending on volume requirements.
In food and fragrance manufacturing, isopentane functions as a solvent and carrier, dissolving flavour compounds and facilitating their controlled release in finished formulations. In refining and petrochemical processing, it acts as a catalyst diluent and blending component, where its low boiling point supports precise process temperature control.
Isopentane is available in technical and high-purity grades, with select batches meeting FCC specifications for food-contact applications. The substance is registered under REACH and subject to standard European hazardous substance handling requirements. Packaging is typically supplied in drums or isotanks depending on volume requirements.
Physical Properties
| Melting Point | -159.9 °C |
| Boiling Point | 27.8 °C @ Press: 760 Torr |
| Density | 0.6201 g/cm³ @ Temp: 20 °C |
| Flash Point | −51 °C |
| Appearance | colourless liquid with a characteristic smell |
| Color | Clear colorless |
| Odor | gasoline-like odor |
| Form | Liquid |
| Water Solubility | Miscible with water, hydrocarbons, oils, alcohol and ether. |
| Vapor Pressure | 11.17 psi ( 20 °C) |
| Refractive Index | n 20/D 1.354(lit.) |
| Log P | 3.4 at 20℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS07 GHS08 GHS09
H
H224H304H315H319H335H336H401H411
P
P210P233P240P241P242P243P261P264P271P273P280P319P321P331P391P405P501P264+P265P301+P316P302+P352P304+P340P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P303+P361+P353P305+P351+P338
Trade & Regulatory
| HS Code | 29011000 |
| UN Number | 1265 |
| ADR Class | 3 |
| Packing Group | I |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 2 |
Other Names
2-methylbutaneR-601aiso-C5H12iso-pentaneR 601A2MethylbutanMethylbutane
Related Products
Raw Materials
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