7-Amino-1,3-naphthalenedisulfonic acid CAS 86-65-7

CAS:86-65-7

Molecular Formula:C10H9NO6S2

Molecular Weight:303.31

EINECS:201-689-2

Synonyms:7-amino-3-naphthalenedisulfonicacid; AMINO K ACID; K-ACID; 7-aminonaphthalene-1,3-disulphonic acid; 2-NAPHTHYLAMINE-6,8-DISULFONIC ACID (AMINO G SALT); 7-aminonaphthalene-1,3-disulfonic acid; 1,3-Disulfo-7-naphthylamine; 7-Amino-1,3-naphthalenedisulfonic acid, tech; 1,3-Naphthalenedisulfonic acid, 7-amino-; 7-Amino-1,3-naphthalenedisulfonic acid; 7-Naphthylamine-1,3-disulfonic acid

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What is 7-Amino-1,3-naphthalenedisulfonic acid CAS 86-65-7?

7-Amino-1,3-naphthalenedionic acid is a gray white to beige green to light brown powder or needle shaped substance

Specification

Item	Specification
pKa	-0.93±0.40(Predicted)
Density	1.6329 (rough estimate)
Melting point	300°C
Refractive index	1.7330 (estimate)
MW	303.31

Application

7-Amino-1,3-naphthalenedionic acid is used as an intermediate for the synthesis of reactive dyes and organic pigments in the dye industry. It can produce a variety of acidic dyes and can be used to make edible pigments