17-Oxapentacyclo[6.6.5.0(2,7).0(9,14).0(15,19)]-nonadeca-2,4,6,9,11,13-hexaene-16,18-dione CAS 5443-16-3

Purity 97%+In StockPharmaceutical Standards
CAS No.5443-16-3
Molecular FormulaC18H12O3
Molecular Weight276.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

17-Oxapentacyclo[6.6.5.0(2,7).0(9,14).0(15,19)]-nonadeca-2,4,6,9,11,13-hexaene-16,18-dione CAS 5443-16-3 chemical structure

Description

17-Oxapentacyclo[6.6.5.0(2,7).0(9,14).0(15,19)]-nonadeca-2,4,6,9,11,13-hexaene-16,18-dione (CAS 5443-16-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H12O3. Molecular weight: 276.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC18H12O3
Molecular Weight276.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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