trans-Cinnamic anhydride CAS 21947-71-7

Purity 97%+In StockPharmaceutical Standards
CAS No.21947-71-7
Molecular FormulaC18H14O3
Molecular Weight278.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

trans-Cinnamic anhydride CAS 21947-71-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 278.30 g/mol gives trans-Cinnamic anhydride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies trans-Cinnamic anhydride (CAS 21947-71-7), a certified reference material (molecular formula C18H14O3, MW 278.30 g/mol) for analytical method development and quality control.

Structurally, trans-Cinnamic anhydride (C18H14O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 278.30 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 trans-Cinnamic anhydride 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 FormulaC18H14O3
Molecular Weight278.30 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

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