Coumarin, 99%+

Name: Coumarin, 99%+
Brand: Vaqora Chemicals
SKU: VQ-012402

About Coumarin, 99%+

Coumarin (CAS 91-64-5) is an oxygen heterocycle offered by Vaqora Chemicals with a typical assay of ≥99%. The compound has the formula C9H6O2, corresponding to a molecular weight of 146.14 g/mol. Its systematic (IUPAC) name is chromen-2-one. It is also known as 1,2-Benzopyrone or 1-Benzopyran-2-one.

The material typically appears as a white crystalline powder. Key physical data: a melting point of 68-73 °C and a boiling point of 298 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span pharmaceutical synthesis and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 50 g, 100 g and 500 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmaceutical synthesis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Coumarin, 99%+
Catalogue No.	VQ-012402
CAS Number	91-64-5
IUPAC name	chromen-2-one
Molecular formula	C₉H₆O₂
Molecular weight	146.14 g/mol
Exact mass	146.0368
Purity / assay	≥99%
HSN code	29322010
InChIKey	ZYGHJZDHTFUPRJ-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C=CC(=O)O2
PubChem CID	323

Physical properties
Physical form	Powder
Appearance	White crystalline powder
Melting point	68-73 °C
Boiling point	298 °C
LogP (XLogP3)	1.4
H-bond donors / acceptors	0 / 2
TPSA	26.3 Å²
UN number	UN 2811
Synonyms	1,2-Benzopyrone, 1-Benzopyran-2-one, 2H-Chromen-2-one, 2H-1-Benzopyran-2-one, cumarin, Tonka bean camphor, Coumarinic anhydride, Coumarine, cis-o-Coumarinic acid lactone, Coumarinic lactone, o-Hydroxycinnamic acid lactone, Benzo-alpha-pyrone

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H302Harmful if swallowed
H317May cause an allergic skin reaction

Precautionary statements: P261, P264, P270, P272, P280, P301 + P316, P301 + P317, P302 + P352, P321, P330, P333 + P317, P362 + P364, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 91-64-5

Synthesis

Coumarine, 99%

CAS: 91-64-5
Formula: C₉H₆O₂
MW: 146.14 g/mol

VQ-012403

Frequently asked questions

What is the CAS number of Coumarin, 99%+?

The CAS Registry Number of Coumarin, 99%+ is 91-64-5. It is also known as 1,2-Benzopyrone, 1-Benzopyran-2-one, 2H-Chromen-2-one.

What is the molecular formula and molecular weight of Coumarin, 99%+?

Coumarin, 99%+ has the molecular formula C9H6O2 and a molecular weight of 146.14 g/mol. Its IUPAC name is chromen-2-one.

Which grade and pack sizes of Coumarin, 99%+ can I order?

We supply Coumarin, 99%+ in (≥99%) grade, in 50 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Coumarin, 99%+?

Yes. Every lot of Coumarin, 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Coumarin, 99%+ be shipped internationally?

Yes. Coumarin, 99%+ is classified as hazardous (UN 2811), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.