26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester CAS 145372-43-6

Purity 97%+In StockPharmaceutical Standards
CAS No.145372-43-6
Molecular FormulaC38H68O4Si2
Molecular Weight645.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester CAS 145372-43-6 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 26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester.

CATO supplies 26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester (CAS 145372-43-6), a certified reference material (molecular formula C38H68O4Si2, MW 645.12 g/mol) for analytical method development and quality control.

Based on its molecular formula C38H68O4Si2, 26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 645.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

As a certified reference material (CRM), 26,27-Didesmethyl-1,3-(tert-butyldimethylsilyl) (5Z)-Calcitriol 24-Carboxylic Acid Methyl Ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC38H68O4Si2
Molecular Weight645.12 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998

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