7-Methyl-3h,4h,7h-pyrazolo[3,4-d][1,2,3]triazin-4-one CAS 18213-76-8

Purity 97%+In StockPharmaceutical Standards
CAS No.18213-76-8
Molecular FormulaC5H5N5O
Molecular Weight151.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methyl-3h,4h,7h-pyrazolo[3,4-d][1,2,3]triazin-4-one CAS 18213-76-8 chemical structure

Description

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.

CATO supplies 7-Methyl-3h,4h,7h-pyrazolo[3,4-d][1,2,3]triazin-4-one (CAS 18213-76-8), a certified reference material (molecular formula C5H5N5O, MW 151.13 g/mol) for analytical method development and quality control.

Structurally, 7-Methyl-3h,4h,7h-pyrazolo[3,4-d][1,2,3]triazin-4-one (C5H5N5O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 151.13 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC5H5N5O
Molecular Weight151.13 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
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
CAS Registry Year (est.)1962
Nitrogen Atoms5

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