3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-thiol CAS 1105191-09-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1105191-09-0
Molecular FormulaC6H7N5S
Molecular Weight181.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-thiol CAS 1105191-09-0 chemical structure

Description

3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-thiol (CAS 1105191-09-0) is a high-purity analytical reference standard with the molecular formula C6H7N5S and a molecular weight of 181.22 g/mol.

The molecular framework of 3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-thiol (C6H7N5S) is characterized by a nitrile group, sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-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 FormulaC6H7N5S
Molecular Weight181.22 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms5
Sulfur Atoms1

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