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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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Model:
90-20-0
Brand:
bosschem
Code:
90-20-0

Product Description

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