Tert-butyl 2-(tert-butyl)-2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carbonyl)hydrazine-1-carboxylate CAS 866038-36-0

Purity 97%+In StockPharmaceutical Standards
CAS No.866038-36-0
Molecular FormulaC20H25Cl2N3O4
Molecular Weight442.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tert-butyl 2-(tert-butyl)-2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carbonyl)hydrazine-1-carboxylate CAS 866038-36-0 chemical structure

Description

The occurrence of Tert-butyl 2-(tert-butyl)-2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carbonyl)hydrazine-1-carboxylate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Tert-butyl 2-(tert-butyl)-2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carbonyl)hydrazine-1-carboxylate (CAS 866038-36-0), molecular formula C20H25Cl2N3O4 and molecular weight 442.34 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Tert-butyl 2-(tert-butyl)-2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carbonyl)hydrazine-1-carboxylate (C20H25Cl2N3O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC20H25Cl2N3O4
Molecular Weight442.34 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°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.)1987
Halogen ContentCl-containing
Nitrogen Atoms3

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