Isobutanol
CAS 78-83-1
EC 201-148-0
Formula C4H10O
MW 74.12 g/mol
Flavors & Fragrances Personal Care & CosmeticsFood & NutritionPlastics & Polymers Flavoring & AcidulantSolvent & CarrierAntioxidant & StabilizerCross-linking & Curing
Description
Isobutanol (CAS 78-83-1) is a short-chain aliphatic alcohol also identified as i-Butanol, iso-C4H9OH, NSC 5708, and FEMA 2179. It carries no E-code designation and is classified under HS code 29051990. It is commercially available as a colourless oily liquid with a characteristic mild odour.
In plastics and polymer processing, isobutanol serves as a reactive intermediate in the production of isobutyl acrylate and methacrylate esters, where it undergoes esterification to form crosslinking monomers used in coating resins. In food and fragrance applications, it functions as a FEMA 2179-listed flavorant and carrier solvent, facilitating the delivery and stability of aroma compounds in finished formulations.
Isobutanol is supplied in technical, FCC, and industrial grades to meet food-contact and polymer-processing specifications. It is fully registered under REACH and handled in accordance with applicable EU chemical regulations. Standard packaging includes drums and IBC containers, with bulk tanker supply available for larger volumes.
In plastics and polymer processing, isobutanol serves as a reactive intermediate in the production of isobutyl acrylate and methacrylate esters, where it undergoes esterification to form crosslinking monomers used in coating resins. In food and fragrance applications, it functions as a FEMA 2179-listed flavorant and carrier solvent, facilitating the delivery and stability of aroma compounds in finished formulations.
Isobutanol is supplied in technical, FCC, and industrial grades to meet food-contact and polymer-processing specifications. It is fully registered under REACH and handled in accordance with applicable EU chemical regulations. Standard packaging includes drums and IBC containers, with bulk tanker supply available for larger volumes.
Physical Properties
| Melting Point | -108 °C |
| Boiling Point | 108 °C |
| Density | 0.8018 g/cm³ @ Temp: 24 °C |
| Flash Point | 82 °F |
| Appearance | colourless oily liquid |
| Color | APHA: ≤10 |
| Odor | Slightly suffocating; nonresidual alcoholi |
| Form | Solid |
| Water Solubility | 95 g/L (20 ºC) |
| Vapor Pressure | 8 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.396(lit.) |
| pH | 7 (80g/l, H2O, 20℃) |
| Log P | 1 at 25℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS05 GHS07 GHS08
H
H226H303H305H313H315H318H319H332H333H335H336H401
P
P210P233P240P241P242P243P261P264P271P273P280P317P319P321P331P405P501P264+P265P301+P316P301+P317P302+P317P302+P352P304+P317P304+P340P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P303+P361+P353P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29051990 |
| UN Number | 1212 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
Isobutyl alcohol2-methylpropan-1-oli-Butanoliso-C4H9OHIBA2-BUTANOL
Related Products
Raw Materials
Derivatives
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