1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride CAS 107430-44-4

Purity 97%+In StockPharmaceutical Standards
CAS No.107430-44-4
Molecular FormulaC10H11N3O
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride CAS 107430-44-4 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride.

1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride (CAS 107430-44-4), molecular formula C10H11N3OHCl and molecular weight 225.68 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride (C10H11N3OHCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 225.68 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one dihydrochloride 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 FormulaC10H11N3O 2*HCl
Molecular Weight225.68 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms3

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