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2-[2-Hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo]phenol

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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;1-AZO-2-HYDROXY-3-(2,4-DIMETHYLCARBOXYANILIDO)NAPHTHALENE-1-(2-HYDROXYBENZENE)
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 Structure
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)
pka8.50±0.30(Predicted)
form powder to crystal
color Orange to Amber to Dark red
CAS DataBase Reference523-67-1(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
ProviderLanguage
SigmaAldrich English
2-[2-Hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo]phenol Usage And Synthesis
Purification MethodsSuspend 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
Tag:2-[2-Hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo]phenol(523-67-1) Related Product Information
2-[2-Hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo]phenol XYLIDYL BLUE I Phenol Salicylanilide Naphthol AS 3-Aminobenzoylmethylamide 6-Amino-2-methylphenol 3-Aminobenzamide 2-Hydroxy-3-naphtoamide Sudan I XYLIDYL BLUE I SODIUM SALT Naphthol AS-D Scarlet 808 2',4'-Dimethylacetanilide Benzanilide 2,2'-Dihydroxyazobenzene 3-Aminobenzanilide 1-(2-Naphthyl)methanamine