Pyranocoumarin

Name: Pyranocoumarin
Brand: Vaqora Chemicals
SKU: VQ-039858

About Pyranocoumarin

Pyranocoumarin (CAS 518-20-7) is an impurity of Coumarin offered by Vaqora Chemicals. The compound has the formula C20H18O4, corresponding to a molecular weight of 322.4 g/mol. Its systematic (IUPAC) name is 2-methoxy-2-methyl-4-phenyl-3,4-dihydropyrano[3,2-c]chromen-5-one. Common synonyms include Cyclocoumarol and Methanopyranorin.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

This Coumarin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Pyranocoumarin in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Coumarin

View every impurity, metabolite and intermediate we list for Coumarin.

Coumarin impurities

Specifications & identifiers

Chemical identifiers
Product name	Pyranocoumarin
Catalogue No.	VQ-039858
CAS Number	518-20-7
IUPAC name	2-methoxy-2-methyl-4-phenyl-3,4-dihydropyrano[3,2-c]chromen-5-one
Molecular formula	C₂₀H₁₈O₄
Molecular weight	322.4 g/mol
Exact mass	322.1205
Grade	Reference Standard
HSN code	38229090
InChIKey	ZGFASEKBKWVCGP-UHFFFAOYSA-N
SMILES	CC1(CC(C2=C(O1)C3=CC=CC=C3OC2=O)C4=CC=CC=C4)OC
PubChem CID	10606

Physical properties
Physical form	Solid
LogP (XLogP3)	3.7
H-bond donors / acceptors	0 / 4
TPSA	44.8 Å²
Synonyms	Cyclocoumarol, Methanopyranorin, methopyranorin, 2-methoxy-2-methyl-4-phenyl-3,4-dihydropyrano(3,2-c)chromen-5-one, 3,4-Dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano-(3,2-c)(1)-benzopyran-5-one, Pyranocumarin, Cumopyrin, Anticoagulans 63, BL 5, 3,4-Dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano(3,2-c)(1)benzopyran-5-one, 3,4-Dihydro-2-methoxy-2-methyl-4-phenyl-2H,5H-pyrano[3,2-c][1]benzopyran-5-one

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H310Fatal in contact with skin

Precautionary statements: P262, P264, P270, P280, P302 + P352, P316, P321, P361 + 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

Frequently asked questions

What is the CAS number of Pyranocoumarin?

The CAS Registry Number of Pyranocoumarin is 518-20-7. It is also known as Cyclocoumarol, Methanopyranorin, methopyranorin.

What is the molecular formula and molecular weight of Pyranocoumarin?

Pyranocoumarin has the molecular formula C20H18O4 and a molecular weight of 322.4 g/mol. Its IUPAC name is 2-methoxy-2-methyl-4-phenyl-3,4-dihydropyrano[3,2-c]chromen-5-one.

What is Pyranocoumarin used for?

Pyranocoumarin is supplied as a characterised reference material related to Coumarin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Pyranocoumarin can I order?

We supply Pyranocoumarin in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pyranocoumarin?

Yes. Every lot of Pyranocoumarin 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 Pyranocoumarin be shipped internationally?

Yes. Pyranocoumarin is classified as hazardous, 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.