ChemicalBook >> CAS DataBase List >>1-Naphthylamine-7-sulfonic acid

1-Naphthylamine-7-sulfonic acid

CAS No.
119-28-8
Chemical Name:
1-Naphthylamine-7-sulfonic acid
Synonyms
SODIUM NAPHTHIONATE;SODIUM NAPTHIONATE;C.I. 26135;CLEVE'S ACID;1.7 Clevs Acid;Cleve's O-acid;1,7-CLEVES ACID;CLEVES ACID-1,7;1,7-CLEVE'S ACID;Cleve's theta-acid
CBNumber:
CB0141189
Molecular Formula:
C10H9NO3S
Molecular Weight:
223.25
MDL Number:
MFCD00004032
MOL File:
119-28-8.mol
MSDS File:
SDS
Last updated:2023-11-29 16:31:21

1-Naphthylamine-7-sulfonic acid Properties

Melting point ≥300 °C(lit.)
Boiling point 220°C (rough estimate)
Density 1.3588 (rough estimate)
refractive index 1.6500 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility Aqueous Base (Slightly), DMSO (Slightly, Sonicated)
form Powder
pka pK1: 3.66 (25°C)
Merck 14,2351
BRN 2115629
InChIKey QEZZCWMQXHXAFG-UHFFFAOYSA-N
CAS DataBase Reference 119-28-8(CAS DataBase Reference)
FDA UNII 21QEG50798
NIST Chemistry Reference 1-Naphthylamine-7-sulfonic acid(119-28-8)
EPA Substance Registry System 2-Naphthalenesulfonic acid, 8-amino- (119-28-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 2585 8/PG 3
WGK Germany  2
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29214500

1-Naphthylamine-7-sulfonic acid price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A7782 8-Amino-2-naphthalenesulfonic acid ≥97% 119-28-8 25g $75.5 2024-03-01 Buy
Sigma-Aldrich A7782 8-Amino-2-naphthalenesulfonic acid ≥97% 119-28-8 100g $201 2024-03-01 Buy
TCI Chemical A0356 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) 119-28-8 25g $60 2024-03-01 Buy
TCI Chemical A0356 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) 119-28-8 500g $460 2021-12-16 Buy
Alfa Aesar J65304 8-Aminonaphthalene-2-sulfonic acid, 95% 119-28-8 25g $67 2024-03-01 Buy
Product number Packaging Price Buy
A7782 25g $75.5 Buy
A7782 100g $201 Buy
A0356 25g $60 Buy
A0356 500g $460 Buy
J65304 25g $67 Buy

1-Naphthylamine-7-sulfonic acid Chemical Properties,Uses,Production

Synthesis

1-Naphthylamine-7-sulfonic acid can be obtained by sulfonation, nitration, neutralization, reduction and acid precipitation of naphthalene.

Chemical Properties

Brown crystalline. 1-Aminonaphthalene-7-sulfonic acid [119- 28-8]. (8-aminonaphthalene-2-sulfonic acid), 1,7-Cleve’s acid, C10H9NO3S, Mr 223.24, is 0.5 % soluble in water at 25℃ and 3 % soluble at 100 ℃. The sodium, potassium, calcium, and magnesium salts are readily soluble in water but the barium salt is only sparingly soluble. Sulfonation with oleum at 50℃ gives 1- aminonaphthalene-4,7-disulfonic acid. Alkali fusion gives 8-amino-2-naphthol, and Bucherer-type hydrolysis gives 1-hydroxynaphthalene-7-sulfonic acid.

Uses

Intermediate of dyestuff

Uses

8-Amino-2-naphthalenesulfonic acid can be used as a reactant to synthesize:

  • Fe3O4/sulfonated polyaniline composite material via chemical oxidative polymerization with aniline in the presence of magnetite (Fe3O4) nanoparticles.
  • Prismatic crystals of strychnine-8-ammonio-2-naphthalenesulfonate-water by heating with strychnine in water/ethanol solvent mixture.
  • 5-amino-9-dialkylamino benzo[a]phenoxazine dyes (Nile blue analogs) by condensation with N-alkyl or N-sulfo-propyl 4-arylazo-substituted 3-hydroxyaniline.

Application

1-Naphthylamine-7-sulfonic acid can be used as a dye intermediate to prepare dyes such as direct light fast blue B2RL, direct light fast red brown RTL, and sulfur blue CV.

Global( 220)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Mojin Biotechnology Co., Ltd
+86-13288715578 +86-13231137666 sales@hbmojin.com China 12409 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177 peter@yan-xi.com China 5960 58
Shaanxi Haibo Biotechnology Co., Ltd
+86-02963020060 +86-18629295024 hibo06@xaltbio.com China 1000 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21703 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038 zheyansh@163.com CHINA 3620 58
career henan chemical co
+86-0371-86658258 sales@coreychem.com China 29919 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28180 58
Xiamen AmoyChem Co., Ltd
+86-592-6051114 +8618959220845 sales@amoychem.com China 6387 58
Hubei xin bonus chemical co. LTD
86-13657291602 linda@hubeijusheng.com CHINA 22968 58
Chongqing Chemdad Co., Ltd
+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58

View Lastest Price from 1-Naphthylamine-7-sulfonic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Naphthylamine-7-sulfonic acid pictures 2023-11-29 1-Naphthylamine-7-sulfonic acid
119-28-8
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
1-Naphthylamine-7-sulfonic acid pictures 2023-11-27 1-Naphthylamine-7-sulfonic acid
119-28-8
US $0.00 / kg 1kg 0.99 20 tons Hebei Yanxi Chemical Co., Ltd.
1-Naphthylamine-7-sulfonic acid pictures 2023-11-08 1-Naphthylamine-7-sulfonic acid
119-28-8
US $0.00-0.00 / KG 1KG 99% 100MT Shaanxi Haibo Biotechnology Co., Ltd
TIMTEC-BB SBB000621 SODIUM 1-NAPHTHYLAMINE-4-SULFONATE PARA-NAPHTHIONIC ACID, NA SALT NAPHTHIONIC ACID SODIUM SALT 0.5-WATER NAPHTHIONIC ACID SODIUM SALT NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT 1-Amino-7-sulfonaphthalene 1-Aminonaphthalene-7-sulfonic acid 2-Naphthalenesulfonic acid, 8-amino- 2-Naphthalenesulfonicacid,8-amino- 1-Naphthylamine-7-sulfonic acid, Cleves acid-1,7 1.7 Clevs Acid 8-AMino-2-naphthalenesulfonic acid >=97% 1-phthylamine-7-sulfonic acid 8-amino-2-naphthalenesulfonicaci 8-Naphthylamine-2-sulfonic acid beta-Naphthylamine-7-sulfonic acid C.I. 26135 Cleve's omega-acid or J-acid Cleve's theta-acid 1,7-CLEVES ACID 1,7-CLEVE'S ACID 1,4-SODIUM NAPHTHIONATE 1-AMINO-4-SULFONAPHTHALENE SODIUM SALT 1-Amino-7-naphthalenesulfonic acid 4-AMINONAPHTHALENE-1-SULFONIC ACID SODIUM SALT 4-AMINONAPHTHALENE-1-SULPHONIC ACID SODIUM SALT 4-AMINO-1-NAPHTHALENESULFONIC ACID SODIUM SALT 0.5-WATER ALPHA-NAPHTHYLAMINE-7-SULFONIC ACID 8-AMINO-2-NAPHTHALENESULFONIC ACID 8-AMINONAPHTHALENE-2-SULFONIC ACID CLEVE'S ACID CLEVES ACID-1,7 1-NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT 0.5-WATER 1-NAPHTHYLAMINE-7-SULFONIC ACID 8-Amino-2-naphtalenesulfonic acid 8-aminonaphthalene-2-sulphonic acid 1-NAPHTHYLAMINE-7-SULFONIC ACID TECHN. 97% Cleve's O-acid 8-Amino-naphthalin-2-sulfonsure 1-Naphthylamine-7-sulfonic acid 119-28-8 1-Naphthylamine-7-sulfonic acid ISO 9001:2015 REACH 1-Naphthylamine-7-sulfonicaci 8-Amino-2-naphthaL 8-Amino-2-naphthalenesulfonicAcid> 8-Amino-2-naphthalenesulfonic acid, 97.5% SODIUM NAPHTHIONATE SODIUM NAPTHIONATE (1-NAPHYLAMINE-7-SULFONIC ACID) 1:7 CLEVES ACID 119-28-8 C10H9O3NS Building Blocks Organic Building Blocks Sulfur Compounds Sulfonic/Sulfinic Acid Salts Sulfonic/Sulfinic Acids Intermediates of Dyes and Pigments Intermediates