3-(Pyrazin-2-yl)-1,2,4-thiadiazol-5-amine CAS 138588-23-5

Purity 97%+In StockPharmaceutical Standards
CAS No.138588-23-5
Molecular FormulaC6H5N5S
Molecular Weight179.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(Pyrazin-2-yl)-1,2,4-thiadiazol-5-amine CAS 138588-23-5 chemical structure

Description

3-(Pyrazin-2-yl)-1,2,4-thiadiazol-5-amine (CAS 138588-23-5) is a high-purity analytical reference standard with the molecular formula C6H5N5S and a molecular weight of 179.20 g/mol.

Owing to a nitrile group, sulfur-containing functionality, an aromatic ring system, 3-(Pyrazin-2-yl)-1,2,4-thiadiazol-5-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.20 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.

As a certified reference material (CRM), 3-(Pyrazin-2-yl)-1,2,4-thiadiazol-5-amine 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 FormulaC6H5N5S
Molecular Weight179.20 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms5
Sulfur Atoms1

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