75370

Orange II sodium salt

for microscopy (Hist.), indicator (pH 11.0-13.0)

• Synonym(s): 4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt, Acid Orange 7, Acid Orange A, Orange II, Tropaeolin 000 No. 2
• Empirical Formula (Hill Notation): C₁₆H₁₁N₂NaO₄S
• CAS Number: 633-96-5
• Molecular Weight: 350.32
• Colour Index Number: 15510
• Beilstein/REAXYS Number: 3898201
• EC Number: 211-199-0
• MDL number: MFCD00011657
• UNSPSC Code: 12171500
• PubChem Substance ID: 329766389
• NACRES: MA.02

Properties

• grade: for microscopy (Hist.); indicator (pH 11.0-13.0)
• Quality Level: 200
• form: powder
• visual transition interval: 11-13, yellow to orange-red
• solubility: hot water: 0.5 g/10 mL, clear
• εmax: ≥500 at 478.0-488.0 nm in water
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].Oc1ccc2ccccc2c1\N=N\c3ccc(cc3)S([O-])(=O)=O
• InChI: 1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1/b18-17+;
• InChI key: CQPFMGBJSMSXLP-ZAGWXBKKSA-M

Description

General description

Orange II is a sulfonated azo dye.

Application

It has been used in synthesis and characterization of Fe-doped aluminosilicate nanotubes with electron conductive properties.

Other Notes

Reagent for the extraction and spectrophotomeric determination of cationic surfactants

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves