Dangerous Goods
structure of 431-03-8

2,3-Butanedione(CAS 431-03-8)

CAS No.: 431-03-8 Brand: MolBest
M. Ft.: C4H6O2 Cat. No: G9179405
M. Wt.: 86.09 MDL: MFCD00008756
Storage: 2-8°C Use: For laboratory research use only
HS CODE: 2914190090 UN No.: UN 2346 3 /PG II
Purity Grade Package Stock Price Quantity
99%
Documents:COANMRGCSDS
RG 25G In Stock 5 USD
99%
Documents:COANMRGCSDS
RG 100G In Stock 6 USD
99%
Documents:COANMRGCSDS
RG 500G In Stock 19 USD
99%
Documents:COANMRGCSDS
RG 2.5KG In Stock 93 USD
99%
Documents:COANMRGCSDS
RG 25KG In Stock 928 USD
Your region is eligible for ordering.
Should you have any questions, please contact us by Email.
Batch COA
Available
NMR Spectrum
Verified
In Stock
Fast Shipping
ISO 9001
Quality System

Quick Links

Applications of 431-03-8

2,3-Butanedione finds numerous applications across various industries:

  • Food Industry: Primarily used as a flavoring agent in butter-flavored products and popcorn.
  • Chemical Industry: Serves as an intermediate in the synthesis of other chemicals and pharmaceuticals.
  • Research: Utilized in studies investigating its mutagenic properties and chemical reactivity.

Physical and chemical properties of 431-03-8

Boiling Point

190 °F

BRN

605398

Decomposition

When heated to decomposition it emits acrid smoke and fumes.

Density

0.99 at 59 °F

Exact Mass

86.036781

explosive limit

2.4-13.0%(V)

Exposure Limits

ACGIH: TWA 0.01 ppm; STEL 0.02 ppm
NIOSH: TWA 5 ppb; STEL 25 ppb

Flash Point

80 °F

Index of Refraction

1.393-1.397

LogP

-1.34

Melting Point

27.7 °F

Merck

14,2966

Molecular Formula

C4H6O2

Molecular Weight

86.089

Odor

Strong odor

Odor Threshold

0.00005ppm

PSA

34.14000

Stability

Stable. Flammable. Incompatible with acids, strong bases, metals, reducing agents, oxidizing agents. Protect from moisture and water. Note low flashpoint.

Storage condition

Store at +2°C to +8°C.

Vapour density

3

Vapour Pressure

Vapor pressure, kPa at 25 °C: 7.6

Water Solubility

200 g/L (20 ºC)

Spectrums of 431-03-8

Attention:
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Physical sample testing spectrum (NMR) of 431-03-8

Retrosynthesis analysis of 431-03-8


Q&A for CAS 431-03-8

1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.

2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.

3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.

4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.

5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.

6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.

7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.

8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.

9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.

10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.

11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.

12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.

Download SDS of 431-03-8

Pictograms

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

Safety Data Sheet

Download COA of 431-03-8

CAS/Product ID
*Required fields
Lot/Batch Number
*Required fields

Operate under the ISO 9001 system