1-(6-Chloropyridazin-3-yl)-3-ethylurea CAS 87976-99-6

Purity 97%+In StockPharmaceutical Standards
CAS No.87976-99-6
Molecular FormulaC7H9ClN4O
Molecular Weight200.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(6-Chloropyridazin-3-yl)-3-ethylurea CAS 87976-99-6 chemical structure

Description

1-(6-Chloropyridazin-3-yl)-3-ethylurea (CAS 87976-99-6), molecular formula C7H9ClN4O and molecular weight 200.63 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H9ClN4O, 1-(6-Chloropyridazin-3-yl)-3-ethylurea 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 200.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

CATO manufactures 1-(6-Chloropyridazin-3-yl)-3-ethylurea under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H9ClN4O
Molecular Weight200.63 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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.)1982
Halogen ContentCl-containing
Nitrogen Atoms4

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