ChemicalBook > CAS DataBase List > 1-Naphthylamine-7-sulfonic acid
1-Naphthylamine-7-sulfonic acid
Synthesis- Product Name
- 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;1,7-cleve's acid
- CBNumber
- CB0141189
- Molecular Formula
- C10H9NO3S
- Formula Weight
- 223.25
- MOL File
- 119-28-8.mol
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1-Naphthylamine-7-sulfonic acid Property
- 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)
- NIST Chemistry Reference
- 1-Naphthylamine-7-sulfonic acid(119-28-8)
- EPA Substance Registry System
- 2-Naphthalenesulfonic acid, 8-amino- (119-28-8)
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Safety
- 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
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363Wash contaminated clothing before reuse.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- A7782
- Product name
- 8-Amino-2-naphthalenesulfonic acid
- Purity
- ≥97%
- Packaging
- 25g
- Price
- $75.5
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- A7782
- Product name
- 8-Amino-2-naphthalenesulfonic acid
- Purity
- ≥97%
- Packaging
- 100g
- Price
- $201
- Updated
- 2024/03/01
TCI Chemical
- Product number
- A0356
- Product name
- 8-Amino-2-naphthalenesulfonic Acid
- Purity
- >97.0%(HPLC)(T)
- Packaging
- 25g
- Price
- $60
- Updated
- 2024/03/01
TCI Chemical
- Product number
- A0356
- Product name
- 8-Amino-2-naphthalenesulfonic Acid
- Purity
- >97.0%(HPLC)(T)
- Packaging
- 500g
- Price
- $460
- Updated
- 2021/12/16
Alfa Aesar
- Product number
- J65304
- Product name
- 8-Aminonaphthalene-2-sulfonic acid, 95%
- Packaging
- 25g
- Price
- $67
- Updated
- 2024/03/01
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1-Naphthylamine-7-sulfonic acid Chemical Properties,Usage,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.
1-Naphthylamine-7-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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1-Naphthylamine-7-sulfonic acid Suppliers
- Tel
- --
- Fax
- --
- info@abcr.de
- Country
- Germany
- ProdList
- 6831
- Advantage
- 75
- Tel
- --
- Fax
- --
- sales@chemos-group.com
- Country
- Germany
- ProdList
- 6350
- Advantage
- 71
- Tel
- --
- Fax
- --
- info@paragos.com
- Country
- Germany
- ProdList
- 6371
- Advantage
- 39
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View Lastest Price from 1-Naphthylamine-7-sulfonic acid manufacturers
hebei hongtan Biotechnology Co., Ltd
- Product
- 1-Naphthylamine-7-sulfonic acid 119-28-8
- Price
- US $30.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 2000kg
- Release date
- 2024-03-25
Hebei Yanxi Chemical Co., Ltd.
- Product
- 1-Naphthylamine-7-sulfonic acid 119-28-8
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 20 tons
- Release date
- 2023-11-27
Hebei Weibang Biotechnology Co., Ltd
- Product
- 1-Naphthylamine-7-sulfonic acid 119-28-8
- Price
- US $30.00-10.00/KG
- Min. Order
- 50KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-24
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