Diacetyl
- CAS Number
- 431-03-8
- HSN Code
- 29141990
- Molecular Formula
- C4H6O2
- Catalogue Number
- AL1649
- Purity
- ≥ 99%
- Molecular Weight
- 86.09 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Butane-2,3-dione is an alpha-diketone that is butane substituted by oxo groups at positions 2 and 3. It is a metabolite produced during the malolactic fermentation.
Also known as 2,3-butanedione.
- Catalogue No.
- AL1649
- CAS Number
- 431-03-8
- Molecular Formula
- C4H6O2
- Molecular Weight
- 86.09 g/mol
- HSN Code
- 29141990
- Grade
- 99% For Synthesis
- Product Form
- Substance
Melting point: -1.2 °C; Boiling point: 87.5 °C; Flash point: 7 °C (45 °F) - closed cup; Density: 0.990 at 15 °C/15 °C; Solubility: In water, 200 g/L at 20 °C.
- Appearance
- Greenish-yellow liquid
- Shelf Life
- -
- Packaging
- Available in: 100 ml glass bottle, 250 ml glass bottle
- Storage
- Fireproof. Store in an area without drain or sewer access. Keep separated from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Diacetyl
- Catalogue No.
- AL1649
- Product form
- Substance
- CAS Number
- 431-03-8
- EC Number
- 207-069-8
- Grade
- 99% For Synthesis
- EC Index Number
- Not specified
- Chemical Formula
- C4H6O2
- HSN Code
- 29141990
- Synonyms
- 2,3-butanedione
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Flavoring agent and synthetic intermediate
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Flam. Liq. 2; Acute Tox. 4; Skin Irrit. 2; Skin Sens. 1; Eye Dam. 1; Acute Tox. 3; STOT RE 2
- Classification source
- ECHA C&L Inventory via PubChem CID 650 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Flammable, Corrosive, Acute Toxic, Health Hazard
- Signal word
- Danger
- Hazard statements
- H225: Highly Flammable liquid and vapor; H302: Harmful if swallowed; H315: Causes skin irritation; H317: May cause an allergic skin reaction; H318: Causes serious eye damage; H331: Toxic if inhaled; H373: May 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, P332+P317, P333+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, P501
2.3 — Other hazards
- Other hazards
- Flammable liquid, respiratory hazard
3.1 — Substance
- Name
- Diacetyl
- CAS No.
- 431-03-8
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention if symptoms persist.
- First-aid measures after skin contact
- IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
- First-aid measures after eye contact
- First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Cough, shortness of breath, and irritation of the respiratory tract.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- For small (incipient) fires, use media such as "alcohol" foam, dry chemical, or carbon dioxide. For large fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Vapors are heavier than air and will collect in low areas. Vapors may travel long distances to ignition sources and flashback.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Evacuate area and ventilate. Use appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Remove all ignition sources. Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in covered containers.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle in a fume hood. Avoid inhalation and contact with skin.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Fireproof. Store in an area without drain or sewer access. Keep separated from incompatible materials.
8.2 — Exposure controls
- Hand protection
- Handle with gloves.
- Eye protection
- Tightly fitting safety goggles. Faceshield (8-inch minimum).
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection when handling.
9.1 — Information on basic physical and chemical properties
- Physical state
- Liquid
- Colour
- Yellow-green
- Odour
- Quinone odor; vapors have a chlorine-like odor
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- -1.2 °C
- Freezing point
- Not specified
- Boiling point
- 87.5 °C
- Flash point
- 7 °C (45 °F) - closed cup
- Auto-ignition temperature
- 365 °C
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Flammable liquid
- Vapour pressure
- 56.8 mm Hg at 25 °C
- Relative vapour density at 20°C
- 3.00 (Air = 1)
- Density
- 0.990 at 15 °C/15 °C
- Solubility
- In water, 200 g/L at 20 °C
- Log Pow
- -1.34
- Viscosity, kinematic
- Not specified
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not specified
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but may react with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Heating may cause violent combustion or explosion. Reacts violently with strong acids, strong bases and oxidants.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents, strong acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits acrid smoke and fumes.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat male gavage 3400 mg/kg bw; LD50 Rat female gavage 3000 mg/kg bw; LD50 Rat gavage 1580 mg/kg bw
- Skin corrosion/irritation
- H315: Causes skin irritation
- Serious eye damage/irritation
- H318: Causes serious eye damage
- Respiratory or skin sensitisation
- H317: May cause an allergic skin reaction
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- H373: May causes damage to organs through prolonged or repeated exposure
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- 2346
- UN-No. (IMDG)
- 2346
- UN-No. (IATA)
- 2346
- UN-No. (ADN)
- 2346
- UN-No. (RID)
- 2346
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Diacetyl
- Proper Shipping Name (IMDG)
- Diacetyl
- Proper Shipping Name (IATA)
- Diacetyl
- Proper Shipping Name (ADN)
- Diacetyl
- Proper Shipping Name (RID)
- Diacetyl
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 3
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Used as a flavoring compound in food science research and as a synthetic intermediate in heterocyclic chemistry.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL0593A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 86.09 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Pale yellow colored liquid | Pale yellow colored liquid |
| Assay | (Min.) 98.0% | 98.26% |
| d 20°/4°C | 0.984 - 0.987g | 0.985g |
The above product complies with LR grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 99% For Synthesis | ≥ 99% | m.p. -1.2 °C; b.p. 87.5 °C | ≤ 0.5% | ≤ 0.1% | None detected | In water, 200 g/L at 20 °C |
Related Products
View AllWhy buy from Alpha Chemika
What Our Scientific & Industrial Customers Say
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“One shop stop for all laboratory chemicals requirements.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“Exactly as advertised.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Alpha Chemika products are of excellent quality. Highly satisfied.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“Completely satisfied with the products and services.”
“Speedy delivery, professional staff.”
“One shop stop for all laboratory chemicals requirements.”
FAQs
Common Questions About Laboratory Chemicals & Solutions
Find answers to common questions about laboratory chemicals, product selection, documentation, ordering, and technical support. Whether you are sourcing chemicals for research, testing, education, manufacturing, or industrial applications, these FAQs can help you make informed purchasing decisions.
Alpha Chemika offers a wide range of laboratory chemicals, reagents, solvents, and specialty products for research, testing, educational, pharmaceutical, and industrial applications.
Product selection depends on factors such as application, required purity, grade, specifications, and intended use. Our team can help you identify suitable products based on your technical requirements.
Yes. Relevant product information and technical documentation can be provided to help you evaluate products for quality, handling, compliance, and application requirements.
Yes. You can share your product list, required quantities, specifications, and delivery requirements with our team for a tailored quotation.
Yes. We support requirements from research laboratories, educational institutions, pharmaceutical companies, manufacturers, distributors, and other scientific and industrial organizations.
Connect with Us for Your Requirements
Have a specific product requirement or need help finding the right chemical for your application? Share your requirements with our team, and we will help you identify suitable products, specifications, quantities, and procurement options.
