(2R,3R,4S,5R)-2-(prop-2-yn-1-yloxy)tetrahydro-2H-pyran-3,4,5-triol CAS 1195960-77-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1195960-77-0
Molecular FormulaC8H12O5
Molecular Weight188.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R,3R,4S,5R)-2-(prop-2-yn-1-yloxy)tetrahydro-2H-pyran-3,4,5-triol CAS 1195960-77-0 chemical structure

Description

(2R,3R,4S,5R)-2-(prop-2-yn-1-yloxy)tetrahydro-2H-pyran-3,4,5-triol (CAS 1195960-77-0), molecular formula C8H12O5 and molecular weight 188.18 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, (2R,3R,4S,5R)-2-(prop-2-yn-1-yloxy)tetrahydro-2H-pyran-3,4,5-triol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.18 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).

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 FormulaC8H12O5
Molecular Weight188.18 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1989

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