5-Chlorotetrahydropyridazin-3(2H)-one CAS 1624261-83-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1624261-83-1
Molecular FormulaC4H7ClN2O
Molecular Weight134.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chlorotetrahydropyridazin-3(2H)-one CAS 1624261-83-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 134.56 g/mol gives 5-Chlorotetrahydropyridazin-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chlorotetrahydropyridazin-3(2H)-one (CAS 1624261-83-1), molecular formula C4H7ClN2O and molecular weight 134.56 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-Chlorotetrahydropyridazin-3(2H)-one (C4H7ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 134.56 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC4H7ClN2O
Molecular Weight134.56 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)2.0
CAS Registry Year (est.)1993
Halogen ContentCl-containing
Nitrogen Atoms2

Recommended Standards

Why CATO?