5,7-Dichloro-3-iodo-2-methylpyrazolo[1,5-a]pyrimidine CAS 1601808-18-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1601808-18-7
Molecular FormulaC7H4Cl2IN3
Molecular Weight327.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,7-Dichloro-3-iodo-2-methylpyrazolo[1,5-a]pyrimidine CAS 1601808-18-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 327.94 g/mol gives 5,7-Dichloro-3-iodo-2-methylpyrazolo[1,5-a]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5,7-Dichloro-3-iodo-2-methylpyrazolo[1,5-a]pyrimidine (CAS 1601808-18-7), a certified reference material (molecular formula C7H4Cl2IN3, MW 327.94 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H4Cl2IN3, 5,7-Dichloro-3-iodo-2-methylpyrazolo[1,5-a]pyrimidine contains a nitrile group, chlorine/iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 327.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H4Cl2IN3
Molecular Weight327.94 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
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Halogen ContentCl/I-containing
Nitrogen Atoms3

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