3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine CAS 1344299-39-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1344299-39-3
Molecular FormulaC7H7ClN2S
Molecular Weight186.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine CAS 1344299-39-3 chemical structure

Description

The occurrence of 3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine (CAS 1344299-39-3), a certified reference material (molecular formula C7H7ClN2S, MW 186.66 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H7ClN2S, 3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 186.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 3-Chloro-5H,7H,8H-thiopyrano[4,3-c]pyridazine 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 FormulaC7H7ClN2S
Molecular Weight186.66 g/mol
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.)1991
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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