ChemAbout
© 2026 ChemAbout
Insights|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/Flavor & Fragrance/Butane-2,3-dione
C4H6O2
86.09 g/mol
Flavor & FragranceDanger

2,3-butanedione

CAS431-03-8EC207-069-8
Category
Flavor & Fragrance
Compound Class
Other
Primary Use
Butter flavor carrier

Diacetyl, also known as 2,3-butanedione, is an organic compound with an intensely buttery flavor. It is a yellow liquid and a vicinal diketone.

Butter flavor carrierFlavoring agent in food products

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Sourcing or supplying this compound?

List your inventory or post a purchase request

CAS 431-03-8

List This Product
Sign in to publish supply information
Request This Product
Submit a request without registering

Related Compounds

ReferenceSame Category

3-Furanmethanol

CAS4412-91-3

flavor and fragrance ingredient

ReferenceSame Category

Octahydrocoumarin

CAS4430-31-3

Fragrance ingredient in fruity-floral compositions

ReferenceSame Category

2,2'-(dithiodimethylene)difuran

CAS4437-20-1

Flavor and fragrance ingredient

ReferenceSame Category

3,4-hexanedione

CAS4437-51-8

flavoring agent

Safety Reference

Flammable
Flammable
Corrosive
Corrosive
Toxic
Toxic
Harmful
Harmful
Health Hazard
Health Hazard
Danger
H225Highly flammable liquid and vapour
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H331Toxic if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H332Harmful if inhaled
H335May cause respiratory irritation
H351Suspected of causing cancer
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Identifiers
IUPAC Name

butane-2,3-dione

InChIKey

QSJXEFYPDANLFS-UHFFFAOYSA-N

SMILES

CC(=O)C(=O)C

Synonyms (24)
  • BUO
  • 2,3-Butadione
  • 2,3-Butanedione (8CI,9CI)
  • 2,3-Butanedione-13C2
  • 2,3-butandione
  • 2,3-butanedione
  • 2,3-diketobutane
  • 2,3-dioxobutane
  • Biacetyl; BDM
  • Buta-2,3-dione
  • Butan-2,3-dione
  • Butane-2,3-dione
  • Butanedione
  • Diacetyl (natural)
  • Diketobutane
  • Glyoxal, dimethyl-
  • biacetyl
  • butadione
  • butane 2
  • diacetyl
  • dimethyl diketone
  • dimethylglyoxal