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structure of 91-64-5

Coumarin(CAS 91-64-5)

CAS No.: 91-64-5 Brand: MolBest
M. Ft.: C9H6O2 Cat. No: G2546403
M. Wt.: 146.14 MDL: MFCD00006850
Storage: Store in a cool,dry area. Use: For laboratory research use only
HS CODE: 2932201000 UN No.: UN 2811 6.1 /PG III
Purity Grade Package Stock Price Quantity
99%
Documents:COANMRSDS
RG 2.5KG In Stock 90 USD
99%
Documents:COANMRSDS
RG 25KG In Stock 885 USD
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Applications of 91-64-5

Coumarin has diverse applications across various fields:

  • Pharmaceuticals: As a precursor for anticoagulants and other therapeutic agents.
  • Fragrance Industry: Due to its pleasant aroma, it is widely used in perfumes and cosmetics.
  • Food Industry: Employed as a flavoring agent in food products, though its use is regulated due to potential toxicity at high doses.
  • Agriculture: Some derivatives are explored for their potential as natural pesticides.

These applications highlight coumarin's economic importance.

Physical and chemical properties of 91-64-5

Boiling Point

297-299 °C

BRN

383644

carcinogen classification

3 (Vol. Sup 7, 77) 2000

Decomposition

When heated to decomposition it emits acrid smoke and fumes.

Density

0.94 g/cm³

Exact Mass

146.036774

Flash Point

150 °C

Index of Refraction

1.595

LogP

1.39

Melting Point

68-70 °C

Merck

14,2562

Molecular Formula

C9H6O2

Molecular Weight

146.143

Odor

Hay-like bittersweet odor

pH Range

Non' uorescence (9.5) to light green ' uorescence (10.5)

PSA

30.21000

Stability

Converted to a dimer on long exposure to light.

Storage condition

Store below +30°C.

Vapour Pressure

Vapor pressure, kPa at 106 °C: 0.13

Water Solubility

1.7 g/L (20 ºC)

λmax

275nm

Spectrums of 91-64-5

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 91-64-5

Retrosynthesis analysis of 91-64-5

  • Route#1

    Cas:3986-98-9
    Cas:91-64-5
  • Route#2

    Cas:91-64-5
  • Route#3

    Cas:682733-47-7
    Cas:7758-99-8
    Cas:91-64-5

Q&A for CAS 91-64-5

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.

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

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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.

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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 91-64-5

Pictograms

Signal Word

Danger

Hazard Statements

H301 Toxic if swallowed
H302 Harmful if swallowed
H317 May cause an allergic skin reaction

Safety Data Sheet

Download COA of 91-64-5

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Operate under the ISO 9001 system