Product

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL

CAS No.：523-67-1

Other grades of this product :

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL Basic information

Product Name:	2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL
Synonyms:	Xylidyl Blue II, 95%, Spectrophotometric reagent for Mg;(4Z)-N-(2,4-dimethylphenyl)-4-[(2-hydroxyphenyl)hydrazinylidene]-3-oxo-2-naphthalenecarboxamide;XYLYLAZO VIOLET II;XYLYLAZO VIOLET 2;XYLIDYL BLUE II;magon;2-[3-(2,4-DIMETHYLPHENYLAMINOCARBOXY)-2-HYDROXY-1-NAPHTHYLAZO]PHENOL;2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL
CAS:	523-67-1
MF:	C25H21N3O3
MW:	411.45
EINECS:	208-347-1
Product Categories:	Analytical Chemistry;Azo Compounds;Chelating Reagents;Naphthylazo Compounds
Mol File:	523-67-1.mol

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL Chemical Properties

Melting point	247 °C
Boiling point	586.6±50.0 °C(Predicted)
density	1.26±0.1 g/cm3(Predicted)
pka	8.50±0.30(Predicted)
form	powder to crystal
color	Orange to Amber to Dark red
CAS DataBase Reference	523-67-1(CAS DataBase Reference)

Safety Information

Risk Statements	20/21/22-36/37/38
Safety Statements	22-24/25
WGK Germany	3
HS Code	29215900

MSDS Information

Provider	Language
SigmaAldrich	English

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL Usage And Synthesis

Purification Methods

Suspend it in H2O and add aqueous NaOH until it dissolves, filter and acidify with dilute HCl. Collect the dye, dissolve it in hot EtOH (solubility is 100mg/L at ca 25o) concentrate to a small volume and allow to cool. The solubility of the Na salt in H2O is 0.4mg/mL. [Mann & Yoe Anal Chim Acta 16 155 1957, Mann & Yoe Anal Chem 28 202 1956.]

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL Preparation Products And Raw materials

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