4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine CAS 128276-98-2

Purity 97%+In StockPharmaceutical Standards
CAS No.128276-98-2
Molecular FormulaC9H15Cl3N2S
Molecular Weight289.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine CAS 128276-98-2 chemical structure

Description

The occurrence of 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2), a certified reference material (molecular formula C9H15Cl3N2S, MW 289.65 g/mol) for analytical method development and quality control.

The molecular framework of 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (C9H15Cl3N2S) is characterized by a nitrile group, sulfur-containing functionality, chlorine substitution. 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.

As a certified reference material (CRM), 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine 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 FormulaC9H15Cl3N2S
Molecular Weight289.65 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1993
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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