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Coumarin

CAS 91-64-5C9H6O2Cell Biology

Coumarin (CAS 91-64-5) is a white crystalline solid with the molecular formula C9H6O2 and a molecular weight of 146.14 g/mol. Known for its sweet, vanilla-like scent, it is widely recognised for its application in fragrances and flavourings. Beyond its aromatic properties, coumarin serves as a valuable intermediate in the synthesis of various pharmaceuticals and agrochemicals, and is also studied for its biological activities in research settings.

IUPAC
1,2-Benzopyrone,1-Benzopyran-2-one,2H-Chromen-2-one
Synonyms
1-Benzopyran-2-one2H-chromen-2-one1,2-Benzopyroneo-coumaric acid lactone2H-1-Benzopyran-2-one2H-benzopyran-2-oneo-hydroxycinnamic acid delta-lactoneo-hydroxycinnamic acid lactone2-oxo-1,2-benzopyran2-oxo-2H-1-benzopyranBenzo-2-pyronebenzo-alpha-pyroneBenzopyran-2-onecis-O-coumaric acid lactonecis-O-coumarinic acid lactonecoumarinac lactoneCoumarinic acid lactonecoumarinic anhydridecumarin
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Coumarin (C9H6O2) — chemical structure, CAS 91-64-5; Life Science, fine chemical supplied by Tech Serve Solutions
Bioactive Small MoleculesCI-CYCell Biology
01 /Applications

Fragrance and Flavour Industry

Coumarin is extensively used as a fragrance ingredient in perfumes, soaps, and detergents due to its pleasant, sweet aroma reminiscent of freshly cut hay or vanilla. It also finds application as a flavouring agent, imparting a sweet taste to various food products.

Pharmaceutical Intermediate

The chemical structure of coumarin makes it a versatile building block for the synthesis of anticoagulant drugs (like warfarin derivatives) and other pharmacologically active compounds. Its derivatives are explored for various therapeutic applications.

Agrochemical Synthesis

Coumarin and its derivatives are employed in the development of certain pesticides and rodenticides. Its ability to interfere with blood clotting mechanisms is leveraged in some pest control applications.

Chemical Research

As a well-characterised organic compound, coumarin is used in academic and industrial research laboratories for studying reaction mechanisms, developing new synthetic methodologies, and exploring its potential biological effects.

02 /Properties
Molecular weight146.14
Empirical formulaC9H6O2
Assay≥99%
Boiling point298 °C(lit.)
Vapour pressure0.01 mmHg (47 °C)
Biological sourcefrom syntheticfrom synthetic
Melting point68-73 °C(lit.)
03 /Safety & handling
GHS hazard pictogram: Toxic (GHS06)
Toxic
Danger

Hazard statements

  • H301Toxic if swallowed

Precautionary statements

  • P301IF SWALLOWED
Protective equipmentdust mask type N95 (US), Eyeshields, Faceshields, Gloves
Transport (UN / ADR)UN 2811 6.1 / PGIII
Water hazard class (WGK, DE)3
Hazard codes (EU)Xn
Risk statements (R)22
Safety statements (S)36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
91-64-5
MDL number
MFCD00006850
PubChem substance
24902108
Beilstein registry
383644
05 /Quality & supply

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.

06 /Frequently asked questions

What is Coumarin used for?

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Coumarin (CAS 91-64-5) is primarily used in the fragrance and flavour industry for its sweet scent and taste. It also serves as an important intermediate in the synthesis of pharmaceuticals, such as anticoagulants, and in the development of agrochemicals. It is also utilized in chemical research.

What is the CAS number and chemical formula for Coumarin?

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The CAS number for Coumarin is 91-64-5, and its empirical formula is C9H6O2.

What grade and purity does Tech Serve Solutions supply for Coumarin?

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Tech Serve Solutions supplies Coumarin with an assay of ≥99%. This product is intended for technical and research purposes, and TSS does not represent it as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product documentation.

How should Coumarin be handled safely?

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Coumarin is classified as acutely toxic if swallowed (H301) and requires careful handling. Recommended personal protective equipment includes a dust mask (type N95 or equivalent), eyeshields, face shields, and gloves. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet for detailed handling procedures.

Is Coumarin a controlled substance?

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The provided data does not indicate that Coumarin is a controlled substance. However, regulations can vary by region and application, and users should always verify local compliance requirements.

How is Coumarin typically packed and shipped by TSS?

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Coumarin is typically packed according to industry standards to ensure safe transit and is exported globally by TSS. Specific packaging details can be provided upon request.

How can I request a sample or quote for Coumarin?

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To request a sample or a quote for Coumarin, please contact the Tech Serve Solutions sales team through our website or by phone, providing your specific requirements and shipping details.

Need Coumarin in a specific grade or volume?