4-Chloro-2-((4-chlorobenzyl)thio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidine CAS 478065-65-5

Purity 97%+In StockPharmaceutical Standards
CAS No.478065-65-5
Molecular FormulaC18H13Cl2N3S2
Molecular Weight406.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-((4-chlorobenzyl)thio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidine CAS 478065-65-5 chemical structure

Description

4-Chloro-2-((4-chlorobenzyl)thio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidine (CAS 478065-65-5), molecular formula C18H13Cl2N3S2 and molecular weight 406.35 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H13Cl2N3S2, 4-Chloro-2-((4-chlorobenzyl)thio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 4-Chloro-2-((4-chlorobenzyl)thio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-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 FormulaC18H13Cl2N3S2
Molecular Weight406.35 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms2

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