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1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid CAS 90-20-0

4-amino-5-hydroxy-7-naphthalenedisulfonicacid;7-Naphthalenedisulfonicacid,4-amino-5-hydroxy-2;c.i.35570;1-Naphthol-8-amino-3,6-disulfonicacid;kyselina1-aminoChemicalbook-8-naftol-3,6-disulfonova;1-AMINO-8-NAPHTHOL-3,6-DISULFONICACID;4-AMINO-5-HYDROXY-2,7-NAPTHALENEDISULFONICACID;4-AMINO-5-HYDROXY-2,7-NAPHTHALENEDISULFONICACID
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  • 90-20-0

  • bosschem

  • 90-20-0

1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid Basic information
Product Name: 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
CAS: 90-20-0
MF: C10H9NO7S2
MW: 319.31
EINECS: 201-975-7
Mol File: 90-20-0.mol
1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid Chemical Properties
Melting point >300 °C(lit.)
density 1.6832 (rough estimate)
refractive index 1.7640 (estimate)
pka -0.95±0.40(Predicted)
CAS DataBase Reference 90-20-0(CAS DataBase Reference)
EPA Substance Registry System 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- (90-20-0)

COA

Item

Specifications

Results



Appearance


A grayish to grayish brown powder



Conforms

Content(dry) %

≥85

85.28

Purity(HPLC) %

≥97

97.57

Chromotropic acid content %

≤1.00

0.44

Omega Acid %

≤0.5

0.07

T Acid %

≤0.30

0.3

Alkali insoluble substance %

≤0.2

0.08

Moisture %

≤5.00

4.56

Conclusion

Qualified

faq

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