2,7-Dihydroxynaphthalene

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Chemical Name:2,7-Dihydroxynaphthalene
CAS.NO:582-17-2
Synonyms:2,7-Naphthelendiol
2,7-Naphtalenediol
 2,7-Naphthalenediol
naphthalenediol-2,7
 naphthalene-2,7-diol
Molecular Formula:C10H8O2
Molecular Weight:160.16900
 
Physical and Chemical Properties:
Density:1.33;
Melting point:185-190oC;
Index of Refraction:1.725;
 
Specification:
Appearance:Light-Grey To Beige Powder
Purity(HPLC):≥99.0%
Ash:≤0.5%
Loss on drying:≤1.0%
Fe content:≤100ppm
2-Naphthol≤0.1%
1-Naphthol≤500ppm
2,6-Dihydroxy Naphthalene≤600ppm
1-Naphthylamine≤100ppm
2-Naphthylamine≤10ppm
 
Packing:25 kg/drum, can also be packaged according to customer requirements
Storage:Store in a cool, ventilated place
Application:Hair dyes intermediate

2,7-Dihydroxynaphthalene


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