1-Aminonaphthalene-6-sulfonic acid

Product Name: 1-Aminonaphthalene-6-sulfonic acid
CAS No.: 119-79-9
Chemical Name: 1-Aminonaphthalene-6-sulfonic acid
Synonyms: 5-AMINONAPHTHALENE-2-SULFONIC ACID;1,6-CLEVES ACID;NSC 4984;NSC 31506;kyselinacleve;CLEVE'S ACIDS;Kyselina cleve;1.6 Clevs Acid;Mix Clevs Acid;cleve’sbeta-acid
CBNumber: CB6228406
Molecular Formula: C10H9NO3S
Formula Weight: 223.25
MOL File: 119-79-9.mol

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1-Aminonaphthalene-6-sulfonic acid Property

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)

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Safety

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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 285072
Product name: 5-Amino-2-naphthalenesulfonic acid
Purity: ≥95%
Packaging: 5g
Price: $50.7
Updated: 2024/03/01

Sigma-Aldrich

Product number: 285072
Product name: 5-Amino-2-naphthalenesulfonic acid
Purity: ≥95%
Packaging: 100g
Price: $289
Updated: 2024/03/01

TCI Chemical

Product number: A0346
Product name: 5-Amino-2-naphthalenesulfonic Acid
Purity: >97.0%(T)
Packaging: 25g
Price: $35
Updated: 2024/03/01

TCI Chemical

Product number: A0346
Product name: 5-Amino-2-naphthalenesulfonic Acid
Purity: >97.0%(T)
Packaging: 500g
Price: $164
Updated: 2024/03/01

Alfa Aesar

Product number: L03099
Product name: 5-Aminonaphthalene-2-sulfonic acid, 97%
Packaging: 5g
Price: $24.65
Updated: 2024/03/01

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1-Aminonaphthalene-6-sulfonic acid Chemical Properties,Usage,Production

Chemical Properties

Purple Solid. 1-Aminonaphthalene-6-sulfonic acid [119- 79-9]. (5-aminonaphthalene-2-sulfonic acid), 1,6-Cleve’s acid, C10H9NO3S, Mr 223.24, crystallizes from boiling water as plates of the dihydrate. Its sodium, potassium, and calcium salts are all readily soluble in water, but the barium salt is only sparingly soluble. Sulfonation with 10 % oleum yields 1-aminonaphthalene-4,6-disulfonic acid. Caustic fusion gives 5- amino-2-hydroxynaphthalene, and Bucherertype hydrolysis gives 1-hydroxynaphthalene-6- sulfonic acid.

Uses

Fluorescent reagent.

Uses

Intermediate of dyestuff

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.

Definition

ChEBI: 5-aminonaphthalene-2-sulfonic acid is an aminonaphthalenesulfonic acid.

Production Methods

Sulfonation of 1-naphthylamine with concentrated sulfuric acid at 130℃ gives mainly 1-aminonaphthalene-6-sulfonic acid. However, the latter is always made, together with the 1,7-isomer, by nitration of naphthalene-2-sulfonic acid to give the mixed 5- and 8- nitronaphthalene-2-sulfonic acids follwed by reduction to ‘‘mixed Cleve’s acids.’’ A b-sulfonation mass is diluted with sulfuric acid, then 67.5 % nitric acid is added slowly at 34℃. After being quenched and neutralized with calcium carbonate, the filtered liquor is reduced by boiling with iron powder, slight acidity being maintained with sulfuric acid. After basification with magnesia the iron residues are filtered off and the filtrate is evaporated until the magnesium salt of the product crystallizes on cooling. Filtration followed by washing with magnesium sulfate gives a 34 % yield of the magnesium salt of 1,6-Cleve’s acid. Purification by dissolution in hot water, acidification, and filtration of the free acid while hot reduce the yield to 25 % based on naphthalene.

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

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

Preparation Products

Peri acid Direct Fast Blue FRL disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate

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1-Aminonaphthalene-6-sulfonic acid Suppliers

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View Lastest Price from 1-Aminonaphthalene-6-sulfonic acid manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: 1-Aminonaphthalene-6-sulfonic acid 119-79-9
Price: US $65.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 5000kg/week
Release date: 2024-06-06

Career Henan Chemical Co

Product: 1-Aminonaphthalene-6-sulfonic acid 119-79-9
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100KG
Release date: 2018-12-24

119-79-9, 1-Aminonaphthalene-6-sulfonic acidRelated Search:

disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate ACID RED 26 ACID RED 1 Acid Red 73 CRYSTAL PONCEAU 6R ACID RED 106 BORDEAUX RED ACID BLUE 29 THORIN Acid Orange 10 Acid Red 27 Ponceau S Direct Red 75 tetrasodium salt Acid Green 1 Direct Blue 71 REACTIVE RED 4 CROCEIN ORANGE G NAPHTHOL YELLOW S

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

5-Naphthylamine-2-sulfonic acid

5-naphthylamine-2-sulfonicacid

cleve’sbeta-acid

Cleve's beta-acid

Kyselina 1-naftylamin-6-sulfonova

Kyselina cleve

kyselina1-naftylamin-6-sulfonova

kyselinacleve

ALPHA-NAPHTHYLAMINE-6-SULFONIC ACID

5-AMINONAPHTHALENE-2-SULFONIC ACID

5-AMINO-2-NAPHTHALENESULFONIC ACID

1-NAPHTHYLAMINE-6-SULFONIC ACID

5-ammonio-2-naphthalenesulfonate

1,6?CLEAVE'SACID(1-NAPTHYLAMINE-6-SULFONICACID)

1-Amino-6-sulfonaphthalene

CLEVE'S ACID 1,6

Aminonaphtalenesulfonicacid,98%

(5or8)-aminonaphthalene-2-sulphonic acid

5-AMINO-2-NAPHTHALENESULFONIC ACID, 95+%

CLEVE'S ACIDS

Cleve acid mixed

1,6-Cleves Acid~1-Naphthylamine-6-sulphonic acid

5-AMINO-2-NAPHTHALENESULPHONICACID

1-NAPHTHYLAMINE-6-SULPHONICACID

5-Amino-naphthalin-2-sulfonsure

5-AMino-2-naphthalenesulfonic Acid, ~90%

6-Sulfo-1-naphthylaMine

NSC 31506

NSC 4984

1.6 Clevs Acid

Mix Clevs Acid

1-Aminonaphthalene-6-sulfonic acid

5-Amino-2-naphthalenesulfonic Acid &gt

5-aminonaphthalene-2-sulfonicaci

1-Aminonaphthalene-6-sulfonic acid ISO 9001：2015 REACH

1-Aminonaphthalene-6-sulfonic acid 119-79-9

5-Aminonaphthalene-2-Sulphonic Acid pure, 98%

1,6-cleve's acid

119-79-9

119-79-7

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