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

7-Methyl-2-(4-nitrophenyl)-1,2,3,4-tetrahydropyrimido[4,5-d]pyrimidine (CAS 20352-38-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H13N5O2. Molecular weight: 271.27 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

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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