Acetyl ketene

Name: Acetyl ketene
Brand: Zemixal
SKU: ZX-034153

Reference StandardAvailable on request

Buy Acetyl ketene (CAS 674-82-8) from Zemixal: C4H4O2, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes

CAS number674-82-8

FormulaC₄H₄O₂

Molar mass84.07 g/mol

Physical formSolid

HS code38229090

InChIKeyWASQWSOJHCZDFK-UHFFFAOYSA-N

IUPAC name4-methylideneoxetan-2-one

About Acetyl ketene

Acetyl ketene belongs to the Manidipine reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 674-82-8, formula C4H4O2 and molar mass 84.07 g/mol. It is handled as a solid.

Where it is used

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Storage and safety notes

Hazard communication follows GHS (Warning: H226 and H332). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Manidipine

See every impurity, metabolite and related compound we list for this API.

Manidipine standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Acetyl ketene
Product name	Acetyl ketene
Catalogue number	ZX-034153
CAS number	674-82-8
IUPAC name	4-methylideneoxetan-2-one
Molecular formula	C₄H₄O₂
Molar mass	84.07 g/mol
Exact mass	84.0211
Grade	Reference Standard
Physical form	Solid
XLogP3	0.3
H-bond donors / acceptors	0 / 2
Topological polar surface area	26.3 Å²
HS code	38229090
InChIKey	WASQWSOJHCZDFK-UHFFFAOYSA-N
SMILES	C=C1CC(=O)O1
PubChem CID	12661
Synonyms	4-Methylene-oxetan-2-one, Diketene, 4-Methylene-2-oxetanone, 2-Oxetanone, 4-methylene-, Ketene, dimer, 3-Buteno-beta-lactone, Vinylaceto-beta-lactone, 3-Butenoic acid, 3-hydroxy-, beta-lactone, 4-methyleneoxetan-2-one, Ethenone, dimer, Ketene dimer, Vinylaceto-.beta.-lactone

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Flammable

Irritant or harmful

Signal word Warning

H226Flammable liquid and vapor
H332Harmful if inhaled

Precautionary statements P210, P233, P240, P241, P242, P243, P261, P271, P280, P303 + P361 + P353, P304 + P340, P317, P370 + P378, P403 + P235, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Acetyl ketene
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Acetyl ketene

Which CAS number identifies Acetyl ketene?

Acetyl ketene is registered under CAS 674-82-8. You may also see it listed as 4-Methylene-oxetan-2-one, Diketene, 4-Methylene-2-oxetanone. Our catalogue number for this item is ZX-034153.

What are the formula and molar mass of Acetyl ketene?

For Acetyl ketene, its formula is C4H4O2 and its molar mass is 84.07 g/mol. The systematic (IUPAC) name is 4-methylideneoxetan-2-one. InChIKey WASQWSOJHCZDFK-UHFFFAOYSA-N lets you match it in any structure database.

How is Acetyl ketene used in pharmaceutical QC?

Acetyl ketene is a characterised reference material linked to Manidipine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Acetyl ketene?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Acetyl ketene?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Acetyl ketene to my country?

Yes. Because Acetyl ketene is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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