Coumarin(CAS 91-64-5)
UN No.:
UN 2811 6.1 /PG III
| Purity | Grade | Package | Stock | Price | Quantity |
| 99% | RG | 2.5KG | In Stock | 90 USD
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| 99% | RG | 25KG | In Stock | 885 USD
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Applications of 91-64-5
| Industry | Application | Process |
|---|---|---|
| Fragrance Industry | Used as a fixative and food-grade flavoring agent, imparting vanilla, tonka bean, lavender, and similar aromas | Added directly to fragrance formulations at typical levels of 0.1–5%; when used in food flavorings for confectionery, ice cream, beverages, etc., compliance with GB 2760 or FDA 21 CFR 172.515 is required |
| Personal Care & Detergent Industry | Employed as a fixative in soap and detergent fragrances to enhance aroma longevity | Co-blended with surfactants into the fragrance base, then homogenized and emulsified prior to incorporation into soap or liquid detergent systems |
| Tobacco Industry | Applied as a cigarette flavor additive to improve smoke smoothness and sweetness | Applied to tobacco strands as an ethanol solution, typically at 0.005–0.05% (w/w), in accordance with the “Principles for Use of Tobacco Additives” |
| Pharmaceutical Intermediates | Serves as a key structural scaffold for synthesizing the anticoagulant warfarin and certain antimicrobial and antitumor derivatives | Coumarin is first synthesized via Pechmann condensation or Perkin reaction, followed by multi-step transformations—including bromination, alkaline hydrolysis, and Clemmensen reduction—to construct the 4-hydroxycoumarin structure |
| Pesticide Development | Utilized as a plant-derived lead compound for insecticidal/antifeedant agents in the development of novel green pesticides | High-activity derivatives are obtained through structural modifications—such as 3-substitution, 4-hydroxylation, or benzo[b]furan fusion—and advanced to registration following field efficacy trials |
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
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.
Retrosynthesis analysis of 91-64-5
Cas:3986-98-9
Cas:93-35-6
Cas:682733-47-7
Cas:7758-99-8
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.
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If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
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Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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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. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
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Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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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
Operate under the ISO 9001 system
