7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine CAS 20352-38-9

Purity 97%+In StockPharmaceutical Standards
CAS No.20352-38-9
Molecular FormulaC13H13N5O2
Molecular Weight271.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine CAS 20352-38-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 271.27 g/mol gives 7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine (CAS 20352-38-9), a certified reference material (molecular formula C13H13N5O2, MW 271.27 g/mol) for analytical method development and quality control.

7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine (C13H13N5O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), 7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-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 FormulaC13H13N5O2
Molecular Weight271.27 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms5

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