Is ethyl 4-acetylbutyrate a synonym for Ethyl 5-oxohexanoate?

Yes. Ethyl 4-acetylbutyrate, ethyl 5-oxocaproate and Ethyl 5-oxohexanoate describe the same keto ester, CAS 13984-57-1. It is not ethyl hexanoate, which lacks the ketone group. Confirm the full name, CAS number, structure and an agreed GC or spectral identity method when matching material.

What should be compared when qualifying Ethyl 5-oxohexanoate?

Compare GC assay and identity, water, acidity or acid value, residual solvents, relevant starting materials and related keto-ester impurities, plus appearance and color. For a downstream condensation, reduction or cyclization, confirm the impurity limits and reaction performance against the buyer’s process rather than treating total assay as the only acceptance criterion.

Ethyl 5-oxohexanoate CAS 13984-57-1

Ethyl 5-oxohexanoate , CAS 13984-57-1 and EC 237-776-7 , is a keto ester with molecular formula C8H14O3 and molecular weight 158.20 g/mol. It is also known as ethyl 5-oxocaproate or ethyl 4-acetylbutyrate. The material is supplied primarily as a synthesis intermediate, with assay, water, acid value, color and route-related impurities defined by the offered specification. A chemical listing does not establish food, flavor, pharmaceutical or other regulated-use approval.

CAS: 13984-57-1
Synonyms: Ethyl 5-oxohexanoate, Ethyl 5-oxocaproate, Ethyl 4-acetylbutyrate, 5-Oxohexanoic acid ethyl ester
Einecs: 237-776-7
Molecular Formula: C₈H₁₄O₃
Grade: Confirm identity, GC assay, water, acid value, color, residual starting materials, route-specific impurities and physical form against the current COA; no regulated-use grade is assumed.
Package: State required quantity and destination; confirm the current container, light or moisture protection, net weight, storage conditions and transport requirements against the current COA and SDS.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Product identity	Ethyl 5-oxohexanoate; ethyl 5-oxocaproate
CAS / EC	13984-57-1 / 237-776-7
Formula / molecular weight	C₈H₁₄O₃ / 158.20 g/mol
Functional groups	One aliphatic ketone and one ethyl ester
Key purchase controls	Identity, GC assay, water, acid value, color, residual starting materials and route-specific impurities
Regulatory boundary	CAS identity alone does not demonstrate approval for food, flavor, pharmaceutical or human-use applications

Applications and grade selection

Ethyl 5-oxohexanoate may be evaluated in carbon-carbon bond formation, cyclization, reduction, condensation and heterocycle-synthesis routes. Its keto and ester functions provide multiple reaction options, but process suitability depends on assay, water, acidity and the impurity profile of the offered lot.

Define the GC assay, water, acid value, color and route-critical impurity limits before sample testing.
Compare reaction conversion, selectivity, work-up and final-product impurity carryover with the approved material.
For regulated end uses, establish grade-specific compliance and documentation independently of chemical identity.

Storage and handling

Store tightly closed in compatible packaging away from heat, ignition sources and incompatible oxidizing or reducing reagents. Follow the current SDS and supplier instructions for temperature, light, atmosphere and retest conditions.

Safety, documentation and procurement

Use appropriate ventilation, gloves and eye protection and control ignition sources according to the current SDS. A procurement request should state the intended reaction, test methods and limits, quantity, packaging, destination and required documents.

FAQ - Technical & Supply Chain

Q:
Is ethyl 4-acetylbutyrate a synonym for Ethyl 5-oxohexanoate?

A: Yes. Ethyl 4-acetylbutyrate, ethyl 5-oxocaproate and Ethyl 5-oxohexanoate describe the same keto ester, CAS 13984-57-1. It is not ethyl hexanoate, which lacks the ketone group. Confirm the full name, CAS number, structure and an agreed GC or spectral identity method when matching material.
Q:
What should be compared when qualifying Ethyl 5-oxohexanoate?

A: Compare GC assay and identity, water, acidity or acid value, residual solvents, relevant starting materials and related keto-ester impurities, plus appearance and color. For a downstream condensation, reduction or cyclization, confirm the impurity limits and reaction performance against the buyer’s process rather than treating total assay as the only acceptance criterion.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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