Methyl 5-Bromo-1H-1,2,3-triazole-4-carboxylate CAS 1427475-25-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1427475-25-9
Molecular FormulaC4H4BrN3O2
Molecular Weight206.00 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 5-Bromo-1H-1,2,3-triazole-4-carboxylate CAS 1427475-25-9 chemical structure

Description

Based on its molecular formula C4H4BrN3O2, Methyl 5-Bromo-1H-1,2,3-triazole-4-carboxylate contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Methyl 5-Bromo-1H-1,2,3-triazole-4-carboxylate (CAS 1427475-25-9), molecular formula C4H4BrN3O2 and molecular weight 206.00 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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 FormulaC4H4BrN3O2
Molecular Weight206.00 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1991
Halogen ContentBr-containing
Nitrogen Atoms3

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