6,7-Dichloro-4-(4-chlorophenyl)-2-(2,4-dichloro-5-methoxyphenyl)-1,2-dihydrophthalazin-1-one CAS 400087-13-0

Purity 97%+In StockPharmaceutical Standards
CAS No.400087-13-0
Molecular FormulaC21H11Cl5N2O2
Molecular Weight500.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,7-Dichloro-4-(4-chlorophenyl)-2-(2,4-dichloro-5-methoxyphenyl)-1,2-dihydrophthalazin-1-one CAS 400087-13-0 chemical structure

Description

6,7-Dichloro-4-(4-chlorophenyl)-2-(2,4-dichloro-5-methoxyphenyl)-1,2-dihydrophthalazin-1-one (CAS 400087-13-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H11Cl5N2O2. Molecular weight: 500.59 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC21H11Cl5N2O2
Molecular Weight500.59 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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