178268

4-(2-Pyridylazo)resorcinol monosodium salt hydrate

• Synonym(s): PAR monosodium salt hydrate
• Empirical Formula (Hill Notation): C₁₁H₈N₃NaO₂ · xH₂O
• CAS Number: 16593-81-0
• Molecular Weight: 237.19 (anhydrous basis)
• Beilstein/REAXYS Number: 3825637
• MDL number: MFCD00150712
• UNSPSC Code: 12171500
• PubChem Substance ID: 24850727
• NACRES: NA.47

Properties

• assay: ≥97.5% (HPLC)
• Quality Level: 200
• form: powder or crystals
• λmax: 411 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[H]O[H].Oc1cc([O-])ccc1\N=N\c2ccccn2
• InChI: 1S/C11H9N3O2.Na.H2O/c15-8-4-5-9(10(16)7-8)13-14-11-3-1-2-6-12-11;;/h1-7,15-16H;;1H2/q;+1;/p-1/b14-13+;;
• InChI key: KMHFHNVYQMFVAN-QDBORUFSSA-M

Description

General description

4-(2-Pyridylazo)resorcinol monosodium salt is a chromophoric indicator and chromogenic chelator employed for the spectrophotometric determination of several metal ions.

Application

4-(2-Pyridylazo)resorcinol monosodium salt hydrate has been used in the preparation of titanium reagent for the spectrometric measurement of hydrogen peroxide (H₂O₂) and superoxide anion (O^2•-). It is also suitable to measure the concentration of Zn²⁺, Zinc transition metal ions.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves