2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carbaldehyde CAS 944902-85-6

Purity 97%+In StockPharmaceutical Standards
CAS No.944902-85-6
Molecular FormulaC9H11N3OS
Molecular Weight209.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carbaldehyde CAS 944902-85-6 chemical structure

Description

CATO manufactures 2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carbaldehyde (CAS 944902-85-6), molecular formula C9H11N3OS and molecular weight 209.27 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carbaldehyde (C9H11N3OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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.

Physical & Chemical Properties

Molecular FormulaC9H11N3OS
Molecular Weight209.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms3
Sulfur Atoms1

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