Tri-O-Cresyl Phosphate CAS 78-30-8

Purity >95%In StockPharmaceutical Standards
CAS No.78-30-8
Molecular FormulaC21H21O4P
Molecular Weight368.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tri-O-Cresyl Phosphate CAS 78-30-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 368.36 g/mol gives Tri-O-Cresyl Phosphate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Tri-O-Cresyl Phosphate (CAS 78-30-8), molecular formula C21H21O4P and molecular weight 368.36 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Tri-O-Cresyl Phosphate (C21H21O4P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 368.36 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.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC21H21O4P
Molecular Weight368.36 g/mol
AppearancePale yellow to 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)11.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Recommended Standards

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