N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide CAS 303104-91-8

Purity 97%+In StockPharmaceutical Standards
CAS No.303104-91-8
Molecular FormulaC17H12ClN5OS
Molecular Weight369.83 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide CAS 303104-91-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 369.83 g/mol gives N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide (CAS 303104-91-8), molecular formula C17H12ClN5OS and molecular weight 369.83 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C17H12ClN5OS, N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 369.83 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), N'-((1H-Indol-3-yl)methylene)-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide 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 FormulaC17H12ClN5OS
Molecular Weight369.83 g/mol
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms5
Sulfur Atoms1

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