7-Methyl-6-oxo-2H,3H,4H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxylic acid hydrochloride CAS 2097937-57-8

Purity 97%+In StockPharmaceutical Standards
CAS No.2097937-57-8
Molecular FormulaC9H10N2O3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methyl-6-oxo-2H,3H,4H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxylic acid hydrochloride CAS 2097937-57-8 chemical structure

Description

The occurrence of 7-Methyl-6-oxo-2H,3H,4H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxylic acid hydrochloride is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 7-Methyl-6-oxo-2H,3H,4H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxylic acid hydrochloride (CAS 2097937-57-8), a certified reference material (molecular formula C9H10N2O3SHCl, MW 262.71 g/mol) for analytical method development and quality control.

Structurally, 7-Methyl-6-oxo-2H,3H,4H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxylic acid hydrochloride (C9H10N2O3SHCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 262.71 g/mol, it falls into the medium-molecular-weight range. 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.

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 FormulaC9H10N2O3S HCl
Molecular Weight262.71 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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