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1-(1-naphthylazo)-2-naphthol

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Company Name: TargetMol Chemicals Inc.
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Products Intro: Product Name:C.I. 12170；NSC 47713;Bordeaux P51N;NSC 45575;Red 2R
CAS:2653-64-7
Package:100 mg；500 mg Remarks:REAGENT;FOR LABORATORY USE ONLY
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Products Intro: Product Name:Naphthylamine Bordeaux (diluted with Barium Sulfate)
CAS:2653-64-7
Purity:>90.0%(T) Package:$71.9/25g;Bulk package Remarks:>90.0%(T)
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Products Intro: Product Name:Solvent Red 4
CAS:2653-64-7
Purity:98% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
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Products Intro: Product Name:Solvent Red 4
CAS:2653-64-7
Purity:98% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
Company Name: J & K SCIENTIFIC LTD.  
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Products Intro: Product Name:NaphthylaMine Bordeaux (diluted with BariuM Sulfate)
CAS:2653-64-7
Package:25G
1-(1-naphthylazo)-2-naphthol Basic information
Product Name:1-(1-naphthylazo)-2-naphthol
Synonyms:1-(1-naphthylazo)-2-naphthol;Red 2R;2-Naphthalenol, 1-(1-naphthalenylazo)-;Solvent red 4 (C.I. 12170);C.I. Solvent Red 4;C. I. Pigment Red 40;1-(1-Naphtylazo)-2-naphthol;1-(1-Naphtylazo)naphthalene-2-ol
CAS:2653-64-7
MF:C20H14N2O
MW:298.34
EINECS:220-176-4
Product Categories:Organics
Mol File:2653-64-7.mol
1-(1-naphthylazo)-2-naphthol Structure
1-(1-naphthylazo)-2-naphthol Chemical Properties
Melting point 230 °C
Boiling point 530.2±33.0 °C(Predicted)
density 1.20±0.1 g/cm3(Predicted)
pka12.03±0.50(Predicted)
form powder to crystal
color Orange to Brown to Dark purple
CAS DataBase Reference2653-64-7
EPA Substance Registry System2-Naphthalenol, 1-(1-naphthalenylazo)- (2653-64-7)
Safety Information
TSCA TSCA listed
HS Code 2927.00.5000
MSDS Information
1-(1-naphthylazo)-2-naphthol Usage And Synthesis
Chemical PropertiesBright blue-red. Stable for 1 hour at 120°C. Average light resistance, poor solvent resistance.
PreparationNaphthalen-1-amine diazotization and Naphthalen-2-ol coupling.
Properties and Applicationsyellow red. From toluene in the crystallization product melting point 224 ℃. Soluble in hot ethanol and benzene in red. In concentrated sulfuric acid to red light blue, dilution to red light purple solution, and then have red brown precipitation. Dye ethanol solution to join concentrated hydrochloric acid is dark red; Join concentrated sodium hydroxide solution for bright red light brown. Mainly used in oil, fat and wax, soap coloring.
Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO General 220 150≥ 220

Sublimation

Insoluble No change No change
1-(1-naphthylazo)-2-naphthol Preparation Products And Raw materials
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