4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol CAS 436100-80-0

Purity 97%+In StockPharmaceutical Standards
CAS No.436100-80-0
Molecular FormulaC13H13ClN4O3
Molecular Weight308.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol CAS 436100-80-0 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 4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol.

CATO supplies 4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol (CAS 436100-80-0), a certified reference material (molecular formula C13H13ClN4O3, MW 308.72 g/mol) for analytical method development and quality control.

Based on its molecular formula C13H13ClN4O3, 4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.72 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.

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

As a certified reference material (CRM), 4-Chloro-2-{[(E)-2-(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)ethenyl]amino}phenol 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 FormulaC13H13ClN4O3
Molecular Weight308.72 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms4

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