2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine CAS 944902-88-9

Purity 97%+In StockPharmaceutical Standards
CAS No.944902-88-9
Molecular FormulaC7H6Cl2N2O
Molecular Weight205.04 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine CAS 944902-88-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine.

CATO supplies 2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine (CAS 944902-88-9), a certified reference material (molecular formula C7H6Cl2N2O, MW 205.04 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H6Cl2N2O, 2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 2,4-Dichloro-5H,7H,8H-pyrano[4,3-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 FormulaC7H6Cl2N2O
Molecular Weight205.04 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2

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