Product

1-Aminonaphthalene-6-sulfonic acid

CAS No.：119-79-9

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1-Aminonaphthalene-6-sulfonic acid Basic information

Product Name:	1-Aminonaphthalene-6-sulfonic acid
Synonyms:	1,6-CLEVES ACID;1,6-CLEVE'S ACID;1-amino-6-naphthalenesulfonic acid;1-Naphthalene -6-sulfonic acid;1-naphthylamine-6-sulfonic;2-Naphthalenesulfonic acid, 5-amino-;2-Naphthalenesulfonicacid,5-amino-;5-amino-2-naphthalenesulfonicaci
CAS:	119-79-9
MF:	C10H9NO3S
MW:	223.25
EINECS:	204-351-2
Product Categories:	Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds;Amines;Aromatics;Fluorescent Labels & Indicators;Intermediates of Dyes and Pigments;Organics
Mol File:	119-79-9.mol

1-Aminonaphthalene-6-sulfonic acid Chemical Properties

Melting point	>300°C
density	1.3588 (rough estimate)
vapor pressure	0Pa at 25℃
refractive index	1.6500 (estimate)
storage temp.	Refrigerator
solubility	soluble100mg/mL, clear, brown (1N NH4OH)
form	Solid
pka	pK1: 3.80 (25°C)
color	Purple
Water Solubility	1g/L(16 ºC)
Merck	14,2350
BRN	1819887
Dissociation constant	0 at 39℃
CAS DataBase Reference	119-79-9(CAS DataBase Reference)
NIST Chemistry Reference	1-Naphthylamine-6-sulfonic acid(119-79-9)
EPA Substance Registry System	2-Naphthalenesulfonic acid, 5-amino- (119-79-9)

Safety Information

Risk Statements	36/37/38
Safety Statements	26-36/37/39-24/25
RIDADR	1759
WGK Germany	1
RTECS	QK1285000
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	29309090

MSDS Information

Provider	Language
SigmaAldrich	English
ALFA	English

1-Aminonaphthalene-6-sulfonic acid Usage And Synthesis

Chemical Properties	Purple Solid
Uses	Intermediate of dyestuff
Uses	Fluorescent reagent.
Uses	5-Amino-2-naphthalenesulfonic acid (1,6-Cleve′s acid) was used in the synthesis of nitrate reductase and detection of nitrate reduction by anaerobic bacteria.
General Description	The crystal structure of 5-amino-2-naphthalenesulfonic acid (1,6-Cleve′s acid) depicted the presence of a sulfonate-aminium group zwitterion.

1-Aminonaphthalene-6-sulfonic acid Preparation Products And Raw materials

Raw materials

Sulfuric acid-->Nitric acid-->Iron-->Naphthalene-->Magnesium carbonate-->Naphthalene-2-sulfonic acid-->1-Naphthylamine-7-sulfonic acid

Preparation Products

Peri acid-->disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate-->Direct Fast Blue FRL-->ACID ORANGE 51-->C.I. Mordant Brown 90-->tetrasodium 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]-1-naphthyl]azo]benzene-1,4-disulphonate-->Direct Black 197-->Direct Blue 278-->Direct Brown 25-->Mordant Brown 36-->C.I. Direct green 21-->C.I. Direct Brown 150-->C.I. Direct Brown 149-->2-Naphthalenesulfonic acid, 6-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-4-hydroxy-, disodium salt-->C.I. Direct Black 87-->2-Naphthalenesulfonic acid, 5(or 8)-[(2,8-dihydroxy-6-sulfo-1-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo]-, trisodium salt

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