4-aminonaphthalene-1-sulfonic acid

Structural formula
General
Surname	4-aminonaphthalene-1-sulfonic acid
Molecular formula	C 10 H 9 NO 3 S
Brief description	white solid
External identifiers / databases
CAS number 84-86-6 130-13-2 (sodium salt) 123333-48-2 (sodium salt hydrate) PubChem 6790 Wikidata Q6964882
properties
Molar mass	223.25 g mol −1
Physical state	firmly
density	1.67 g cm −3
Melting point	> 300 ° C
solubility	very sparingly soluble in water (0.31 g l −1 at 20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 314 P: 280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

4-aminonaphthalene-1-sulfonic acid is a chemical compound from the group of aminosulfonic acids .

Extraction and presentation

4-aminonaphthalene-1-sulfonic acid can be obtained by reacting 1-aminonaphthalene with sulfuric acid.

properties

4-aminonaphthalene-1-sulfonic acid is a flammable, hardly inflammable white solid that is very sparingly soluble in water.

use

4-aminonaphthalene-1-sulfonic acid is used as an intermediate in the synthesis of azo dyes (such as Rocceline , aka Solid Red A). Its sodium salt has been used as a non-toxic hemostatic agent.

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on 4-aminonaphthalene-1-sulfonic acid in the GESTIS substance database of the IFA , accessed on December 31, 2016(JavaScript required) .
2. ↑ ^{a b} Gerald Booth: Ullmann's Encyclopedia of Industrial Chemistry . Wiley-VCH Verlag & Co. KGaA, 2000, ISBN 978-3-527-30673-2 , Naphthalene Derivatives.
3. ↑ Data sheet 4-Amino-1-naphthalenesulfonic acid, 97% from Sigma-Aldrich , accessed on December 31, 2016 ( PDF ).