CAS

Appearance

Content

Strength

Melting

2-hydroxy-3-naphthoic acid content

Naphthol AS

92-77-3

Creamy-white

powder

≥99%

100±5

247℃

≤0.09%

Naphthol AS-BO

132-68-3

Light beige powder

≥99%

100±5

217℃

≤0.1%

Naphthol AS-G

91-96-3

Light creamy-white

powder

≥98%

/

204~205℃

/

Naphthol AS-E

92-78-4

Creamy-white

powder

≥99%

100±5

257℃

 ≤0.1%

Naphthol AS-BS

135-65-9

Light beige powder

≥99%

100±5

242℃

≤0.09%

CAS

Appearance

Content

Strength

Melting

Insoluble substance in HCL

Fast Scarlet Base G

92-77-3

Yellow powder

≥99%

100±3

104°C

≤0.2%

Fast Red RC Base

4274-03-7

Grayish white to milk white powder

≥99%

100±5

/

≤0.2%

Scarlet RC Base

27165-17-9

Grayish white powder

≥90%

100±3

300℃

≤0.2%

Fast Garnet GBC

101-89-3

Brown powder

≥90%

100

/

≤0.2%