3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine CAS 153953-26-5

Purity 97%+In StockPharmaceutical Standards
CAS No.153953-26-5
Molecular FormulaC9H11NS
Molecular Weight165.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine CAS 153953-26-5 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine.

3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine (CAS 153953-26-5), molecular formula C9H11NS and molecular weight 165.26 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine (C9H11NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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 165.26 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.

As a certified reference material (CRM), 3,4-Dihydro-7-Methyl-2H-1,4-Benzothiazine 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 FormulaC9H11NS
Molecular Weight165.26 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2000
Nitrogen Atoms1
Sulfur Atoms1

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