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ChemicalBook--->CAS DataBase List--->523-67-1

523-67-1

523-67-1 Structure

523-67-1 Structure
IdentificationMore
[Name]

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

523-67-1
[Synonyms]

1-AZO-2-HYDROXY-3-(2,4-DIMETHYLCARBOXYANILIDO)NAPHTHALENE-1-(2-HYDROXYBENZENE)
2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL
2-[3-(2,4-DIMETHYLPHENYLAMINOCARBOXY)-2-HYDROXY-1-NAPHTHYLAZO]PHENOL
XYLIDYL BLUE II
XYLYLAZO VIOLET 2
XYLYLAZO VIOLET II
magon
3-hydroxy-4-[(2-hydroxyphenyl)azo]-N-(2,4-xylyl)naphthalene-2-carboxamide
XYLYLAZO VIOLET 2 [SPECTROPHOTOMETRIC REAGENT FOR MG.]
Xylylazo Violet II [Spectrophotometric reagent for Mg]
Xylidyl blue II, 3-Hydroxy-4-(2-hydroxyphenylazo)-2-naphthoyl-2,4-dimethylanilide
3-Hydroxy-4-(2-hydroxyphenylazo)-N-(2,4-dimethylphenyl)-2-naphthalenecarboxamide
3-Hydroxy-4-(2-hydroxyphenylazo)-N-(2,4-dimethylphenyl)naphthalene-2-carboxamide
N-(2,4-Dimethylphenyl)-2-hydroxy-1-(2-hydroxyphenylazo)-3-naphthamide
XB-II
Xylidine Blue II
[EINECS(EC#)]

208-347-1
[Molecular Formula]

C25H21N3O3
[MDL Number]

MFCD00014309
[Molecular Weight]

411.45
[MOL File]

523-67-1.mol
Chemical PropertiesBack Directory
[Melting point ]

247 °C
[Boiling point ]

586.6±50.0 °C(Predicted)
[density ]

1.26±0.1 g/cm3(Predicted)
[form ]

powder to crystal
[pka]

8.50±0.30(Predicted)
[color ]

Orange to Amber to Dark red
[CAS DataBase Reference]

523-67-1(CAS DataBase Reference)
Safety DataBack Directory
[Risk Statements ]

R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

3
[HS Code ]

29215900
Spectrum DetailBack Directory
[Spectrum Detail]

2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL(523-67-1)MS
2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL(523-67-1)IR1
2-[2-HYDROXY-3-(2,4-XYLYLCARBAMOYL)-1-NAPHTHYLAZO]PHENOL(523-67-1)IR2
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

523-67-1(sigmaaldrich)
[TCI AMERICA]

Xylylazo Violet II  [Spectrophotometric reagent for Mg],>95.0%(LC)(523-67-1)
Hazard InformationBack Directory
[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.]
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