2-Amino-5-bromobenzothiazole CAS 20358-03-6

Purity 97%+In StockPharmaceutical Standards
CAS No.20358-03-6
Molecular FormulaC7H5BrN2S
Molecular Weight229.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Amino-5-bromobenzothiazole CAS 20358-03-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 229.10 g/mol gives 2-Amino-5-bromobenzothiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Amino-5-bromobenzothiazole (CAS 20358-03-6), molecular formula C7H5BrN2S and molecular weight 229.10 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Amino-5-bromobenzothiazole (C7H5BrN2S) is characterized by a nitrile group, sulfur-containing functionality, bromine substitution, 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. 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.

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 FormulaC7H5BrN2S
Molecular Weight229.10 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentBr-containing
Nitrogen Atoms2
Sulfur Atoms1

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