1286156-10-2 4-tert-Butyldimethylsilyloxy-6-fluoro-2-hydroxymethyl-3,4-dihydro-2H-1-benzopyran (Mixture of Diastereomers) CAS 1286156-10-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1286156-10-2
Molecular FormulaC16H25FO3Si
Molecular Weight312.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1286156-10-2
4-tert-Butyldimethylsilyloxy-6-fluoro-2-hydroxymethyl-3,4-dihydro-2H-1-benzopyran (Mixture of Diastereomers) CAS 1286156-10-2 chemical structure

Description

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

1286156-10-2 4-tert-Butyldimethylsilyloxy-6-fluoro-2-hydroxymethyl-3,4-dihydro-2H-1-benzopyran (Mixture of Diastereomers) (CAS 1286156-10-2), molecular formula C16H25FO3Si and molecular weight 312.45 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 1286156-10-2 4-tert-Butyldimethylsilyloxy-6-fluoro-2-hydroxymethyl-3,4-dihydro-2H-1-benzopyran (Mixture of Diastereomers) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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 FormulaC16H25FO3Si
Molecular Weight312.45 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF-containing

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