5-Phenyl-1,3-oxazole-2-thiol CAS 16172-23-9

Purity 97%+In StockPharmaceutical Standards
CAS No.16172-23-9
Molecular FormulaC9H7NOS
Molecular Weight177.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Phenyl-1,3-oxazole-2-thiol CAS 16172-23-9 chemical structure

Description

5-Phenyl-1,3-oxazole-2-thiol (CAS 16172-23-9), molecular formula C9H7NOS and molecular weight 177.22 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 5-Phenyl-1,3-oxazole-2-thiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 177.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), 5-Phenyl-1,3-oxazole-2-thiol 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 FormulaC9H7NOS
Molecular Weight177.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Nitrogen Atoms1
Sulfur Atoms1

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