482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN CAS 482-53-1

Purity 97%+In StockPharmaceutical Standards
CAS No.482-53-1
Molecular FormulaC25H36O5
Molecular Weight416.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN CAS 482-53-1 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN.

482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN (CAS 482-53-1), molecular formula C25H36O5 and molecular weight 416.55 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN (C25H36O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 416.55 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 482-53-1 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- 4H,2-b:3,4-b']dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)- NSC-21565 NSC21565 OSAJIN under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC25H36O5
Molecular Weight416.55 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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