7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one CAS 91996-86-0

Purity 97%+In StockPharmaceutical Standards
CAS No.91996-86-0
Molecular FormulaC7H6N4OS
Molecular Weight194.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one CAS 91996-86-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 194.21 g/mol gives 7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one (CAS 91996-86-0), a certified reference material (molecular formula C7H6N4OS, MW 194.21 g/mol) for analytical method development and quality control.

Structurally, 7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one (C7H6N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 194.21 g/mol, it falls into the medium-molecular-weight range. 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), 7-(Methylthio)pyrimido[4,5-d]pyrimidin-4(3H)-one 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 FormulaC7H6N4OS
Molecular Weight194.21 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms4
Sulfur Atoms1

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