1722-11-8 2,5-dichloro-4-(4-{(e)-[5-({4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl}amino)-2-sulfophenyl]diazenyl}-3-methyl-5-oxo-4,5-dihydro-1h-pyrazol-1-yl)benzenesulfonic acid AR-1D4226 CAS 1722-11-8

Description

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.

1722-11-8 2,5-dichloro-4-(4-{(e)-[5-({4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl}amino)-2-sulfophenyl]diazenyl}-3-methyl-5-oxo-4,5-dihydro-1h-pyrazol-1-yl)benzenesulfonic acid AR-1D4226 (CAS 1722-11-8), molecular formula C9H12ClN3HCl and molecular weight 234.12 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 1722-11-8 2,5-dichloro-4-(4-{(e)-[5-({4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl}amino)-2-sulfophenyl]diazenyl}-3-methyl-5-oxo-4,5-dihydro-1h-pyrazol-1-yl)benzenesulfonic acid AR-1D4226 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 234.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

Physical & Chemical Properties

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