Alcohols & Glycols REACH

1-pentanol

CAS Number

71-41-0

EC Number

200-752-1

FEMA Number

FEMA 2056

Industries: Personal Care & Cosmetics Food & Nutrition Plastics & Polymers

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What is 1-pentanol?

1-Pentanol (CAS 71-41-0), also known as primary amyl alcohol, is a straight-chain aliphatic alcohol used as a solvent, chemical intermediate, and flavoring agent. FEMA 2056.

Where is 1-pentanol used?

Food and beverage: mild, fusel-like note and carrier or co-solvent for flavor concentrates
Personal care: solvent and viscosity modifier
Emulsions and fragrance bases: light, non-greasy carrier
Polymer manufacturing: reactive intermediate in the synthesis of plasticizers and esters, particularly amyl acrylate and amyl acetate
It also serves as a process solvent in pharmaceutical and specialty chemical synthesis.

Good to know: Its moderate chain length positions it between short-chain and fatty alcohols, making it useful where both solvency and mild odor character are required. Food-grade material meeting FCC specifications is available for flavor and fragrance applications, while technical-grade product serves industrial solvent and synthesis uses.

Commercial specifications

Clear liquid in drums and IBC containers
Technical grade for industrial solvent and synthesis uses

Other Names (Synonyms)

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What are the physical properties of 1-pentanol?

Melting Point -79 °C

Boiling Point 137.5 °C

Density 0.8146 g/cm³ @ Temp: 20 °C

Flash Point 120 °F

Appearance Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid.

Color APHA: ≤30

Odor Pleasant 0.1 ppm

Form Liquid

Water Solubility 22 g/L (22 ºC)

Vapor Pressure 1 mm Hg ( 13.6 °C)

Refractive Index n 20/D 1.409(lit.)

pH 7 (20°C, 22g/L)

Log P 1.51

How is 1-pentanol classified and handled safely? Learn More

Warning

GHS02· Flammable GHS07· Irritant GHS05· Corrosive GHS08· Health Hazard

Hazard Statements

H226 Flammable liquid and vapor

H314 Causes severe skin burns and eye damage

H315 Causes skin irritation

H318 Causes serious eye damage

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P233 Keep container tightly closed.

P240 Ground and bond container and receiving equipment.

P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Which trade and regulatory codes apply to 1-pentanol?

HS Code 29051990

UN Number 1105

ADR Class 3

Packing Group III

Storage Class 3 - Flammable liquids

WGK (Germany) 1