5-chloropyridazin-4-ol CAS 1245643-70-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1245643-70-2
Molecular FormulaC4H9ClN2O
Molecular Weight136.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-chloropyridazin-4-ol CAS 1245643-70-2 chemical structure

Description

As a certified reference material (CRM), 5-chloropyridazin-4-ol 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.

5-chloropyridazin-4-ol (CAS 1245643-70-2) is a high-purity analytical reference standard with the molecular formula C4H9ClN2O and a molecular weight of 136.58 g/mol.

5-chloropyridazin-4-ol (C4H9ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC4H9ClN2O
Molecular Weight136.58 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1990
Halogen ContentCl-containing
Nitrogen Atoms2

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