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2653-66-9

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2653-66-9 Structure

2653-66-9 Structure
IdentificationBack Directory
[Name]

1-(2-Naphtylazo)-2-naphthol
[CAS]

2653-66-9
[Synonyms]

C.I.12175
C.I.Solvent Orange 8
1-(2-Naphtylazo)-2-naphthol
C.I.Solvent Orange 8:C.I.12175
2-Naphthalenol, 1-[2-(2-naphthalenyl)diazenyl]-
(1Z)-1-(naphthalen-2-ylhydrazinylidene)naphthalen-2-one
[Molecular Formula]

C20H14N2O
[MOL File]

2653-66-9.mol
[Molecular Weight]

298.34
Safety DataBack Directory
[HS Code ]

2927000090
Hazard InformationBack Directory
[Preparation]

Naphthalen-2-amine diazotization, and Naphthalen-2-ol coupling.
[Properties and Applications]

red orange (mineral oil). Melting point 176 ℃ (red brown acicular crystal). In concentrated sulfuric acid for magenta, after dilution red brown precipitation.
Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO Good 176 ≥ 205Sublimation Insoluble No change No change
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