Carnosic Acid CAS 3650-09-7

Purity >95%In StockPharmaceutical Standards
CAS No.3650-09-7
Molecular FormulaC20H28O4
Molecular Weight332.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Carnosic Acid CAS 3650-09-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 332.43 g/mol gives Carnosic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Carnosic Acid (CAS 3650-09-7) is a high-purity analytical reference standard with the molecular formula C20H28O4 and a molecular weight of 332.43 g/mol.

Structurally, Carnosic Acid (C20H28O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 332.43 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures Carnosic Acid 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 FormulaC20H28O4
Molecular Weight332.43 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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