2-Ethyl-1-butanol

2-Ethyl-1-butanol (CAS 97-95-0) is a branched primary alcohol that serves as a versatile building block in organic synthesis. The ethyl substitution at the 2-position provides distinct steric and solubility characteristics useful for preparing esters, ethers, and other derivatives in fine chemical manufacturing.

Basic Information

CAS No.	97-95-0
EC No.	202-621-4
Linear Formula	(C2H5)2CHCH2OH
Molecular Weight	102.17
Appearance	Colorless to almost colorless clear liquid
Melting Point	-15 °C (lit.)
Boiling point	146 °C (lit.)
Density	0.83 g/mL at 20 °C (lit.)
RIDADR	UN 2275 Class 3 PG III
Chemical Structure

Key Applications

• Alcohol building block for synthesis: 2-Ethyl-1-butanol serves as a versatile primary alcohol used in esterification, etherification, and oxidation reactions. It acts as a precursor for the preparation of ether derivatives within Alkoxy Propanols and Propylene Glycol Ethers for Pharmaceutical Synthesis, where alcohol-based intermediates are essential for downstream functionalization.

• Alkyl chain introduction: The branched structure enables incorporation of hydrophobic alkyl chains into functional molecules, supporting solubility tuning and structural modification in organic synthesis. This function relates to the broader alkoxy and ether precursor application category.

• Fine chemical intermediate: Widely used in the production of specialty chemicals, plasticizers, and intermediates where branched alcohols contribute to performance and processability.

• Functional molecule construction: Facilitates assembly of aliphatic systems through alcohol-based transformations, including ester formation and ether synthesis pathways.

• Laboratory research: Applied in research for synthetic methodology development and evaluation of alcohol-based transformations in organic chemistry.

• Process development: Supports route optimization and scale-up in processes requiring reliable branched alcohol intermediates and consistent reactivity.

2-Ethyl-1-butanol is used as an upstream intermediate in the Alkoxy Propanols & Glycol Ethers application category and is part of our broader portfolio of Ethers for Pharmaceutical Intermediates & Specialty Synthesis, covering alcohol precursors, ether intermediates, and specialty chemical building blocks.

• International logistics & supply stability: Efficient global shipping networks ensure stable supply from laboratory to bulk scale for fine chemical customers worldwide.

• Safety documentation & regulatory compliance: Complete SDS, COA, and dangerous goods documentation provided to meet international safety and transportation requirements.

• Technical support & flexible packaging: Professional technical communication combined with flexible packaging options in 25L/200L HDPE drums with PE liners to suit customer needs.

Hazards Classification

GHS Classification: Flammable liquids Category 3; Acute toxicity (oral) Category 4; Acute toxicity (dermal) Category 4

Hazard Statements: H226 - Flammable liquid and vapor; H302 - Harmful if swallowed; H312 - Harmful in contact with skin

UN Number: 2275

Hazard Class: 3

Packing Group: III