Methyl 5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate CAS 852874-29-4

Purity 97%+In StockPharmaceutical Standards
CAS No.852874-29-4
Molecular FormulaC8H6Cl2N4O2
Molecular Weight261.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate CAS 852874-29-4 chemical structure

Description

Methyl 5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate (CAS 852874-29-4) is a high-purity analytical reference standard with the molecular formula C8H6Cl2N4O2 and a molecular weight of 261.06 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Methyl 5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Methyl 5,7-dichloro-1-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylate 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 FormulaC8H6Cl2N4O2
Molecular Weight261.06 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms4

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