2,3-Butanedione
2,3-Butanedione (CAS: 431-03-8), also known as diacetyl, is a volatile organic compound with the molecular formula C4H6O2 and a molecular weight of 86.09 g/mol. This diketone is characterised by its buttery odour and is primarily used in chemical synthesis as a precursor to various heterocyclic compounds and in biological research for its enzyme-inhibiting properties. Available from Tech Serve Solutions with a purity of ≥99.0% (GC).
- IUPAC
- Biacetyl,Diacetyl
- Synonyms
- DiacetylBiacetyl2,3-Dioxobutane
Chemical Synthesis
Serves as a valuable building block in organic synthesis. It is used in cyclocondensation reactions with amines to form heterocyclic systems such as triazines and pteridines.
Biochemical Research
Acts as an inhibitor for enzymes like aminopeptidase-N. This property makes it useful in biological studies investigating enzyme function and metabolic pathways.
Precursor for Alpha-Diones
Utilised as a starting material in the synthesis of other alpha-dicarbonyl compounds, expanding its utility in synthetic chemistry.
| Molecular weight | 86.09 |
|---|---|
| Linear formula | CH3COCOCH3 |
| Assay | ≥99.0% (GC) |
| Boiling point | 88 °C(lit.) |
| Density | 0.985 g/mL at 20 °C0.981 g/mL(lit.) |
| Refractive index | n20/D 1.394(lit.)n20/D 1.394 |
| Vapour pressure | 52.2 mmHg (20 °C) |
| Vapour density | 3 (vs air) |
| Autoignition temp | 345 °C |
| Storage temperature | 2-8°C |
| Application | Inactivates aminopeptidase-N.1 Cyclocondensation with amines has been used to form triazine2 and pteridine ring systems.3 Also used as a precursor to α-diones.4 |
Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H331Toxic if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, Heavyweight Gloves, multi-purpose combination respirator cartridge (US), Safety Clothing, type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 7 °C / 44.6 °F |
| Transport (UN / ADR) | UN 2346 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-20/22-37/38-41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... ACHE(43), BCHE(590), CES1(1066) |
|---|---|
| Transition Temp | solidification point −3-1 °C |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,3-Butanedione used for?
+
2,3-Butanedione (CAS: 431-03-8) is used in chemical synthesis, including the formation of triazine and pteridine ring systems, as a precursor to other alpha-diones, and in biological research for its ability to inactivate enzymes like aminopeptidase-N.
What are the CAS number and formula for 2,3-Butanedione?
+
The CAS number for 2,3-Butanedione is 431-03-8, and its molecular formula is C4H6O2 (CH3COCOCH3).
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2,3-Butanedione with a purity of ≥99.0% (GC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 2,3-Butanedione be handled and stored?
+
2,3-Butanedione is flammable and harmful if swallowed, inhaled, or in contact with skin, and causes serious eye damage and respiratory irritation. Handle with appropriate personal protective equipment including eyeshields, gloves, and respiratory protection. Store at 2-8°C.
Is 2,3-Butanedione shipped internationally by TSS?
+
Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2,3-Butanedione.
How can I request a quote or sample for 2,3-Butanedione?
+
Please contact our sales team directly through our website or by phone to request a quote or sample for 2,3-Butanedione.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis