Diacetyl, 98%

Name: Diacetyl, 98%
Brand: Vaqora Chemicals
SKU: VQ-008110

About Diacetyl, 98%

Diacetyl (CAS 431-03-8) is a carbonyl building block offered by Vaqora Chemicals in Synthesis grade with a typical assay of 98%. The compound has the formula C4H6O2, corresponding to a molecular weight of 86.09 g/mol. The IUPAC name is butane-2,3-dione. Alternative names: Biacetyl and Dimethyl diketone.

It is supplied as a liquid. Literature values give a boiling point of 88 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include organic synthesis, condensation and reductive amination, API intermediates and enzyme inhibition studies. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 100 mL, 250 mL, 1 kg and 4 x 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
Condensation & reductive amination
API intermediates
Enzyme inhibition studies

Industries

Specifications & identifiers

Chemical identifiers
Product name	Diacetyl, 98%
Catalogue No.	VQ-008110
CAS Number	431-03-8
IUPAC name	butane-2,3-dione
Molecular formula	C₄H₆O₂
Molecular weight	86.09 g/mol
Exact mass	86.0368
Grade	Synthesis
Purity / assay	98%
HSN code	29141990
InChIKey	QSJXEFYPDANLFS-UHFFFAOYSA-N
SMILES	CC(=O)C(=O)C
PubChem CID	650

Physical properties
Physical form	Liquid
Appearance	Liquid
Boiling point	88 °C
LogP (XLogP3)	-1.3
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
UN number	UN 2346
Synonyms	Biacetyl, Dimethyl diketone, 2,3-Diketobutane, 2,3-butanedione, dimethylglyoxal, Butanedione, Dimethyl glyoxal, 2,3-dioxobutane, 2,3-Butadione, Glyoxal, dimethyl-, 2,3-butandione, Diketobutane

Safety & hazard information (GHS)

Flammable

Corrosive

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H225Highly flammable liquid and vapor
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H331Toxic if inhaled
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P210, P233, P240, P241, P242, P243, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P302 + P352, P303 + P361 + P353, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P330

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Diacetyl, 98%?

The CAS Registry Number of Diacetyl, 98% is 431-03-8. It is also known as Biacetyl, Dimethyl diketone, 2,3-Diketobutane.

What is the molecular formula and molecular weight of Diacetyl, 98%?

Diacetyl, 98% has the molecular formula C4H6O2 and a molecular weight of 86.09 g/mol. Its IUPAC name is butane-2,3-dione.

Which grade and pack sizes of Diacetyl, 98% can I order?

We supply Diacetyl, 98% in Synthesis (98%) grade, in 100 mL, 250 mL, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Diacetyl, 98%?

Yes. Every lot of Diacetyl, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Diacetyl, 98% be shipped internationally?

Yes. Diacetyl, 98% is classified as hazardous (UN 2346), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.