2-Amino-1,5-naphthalenedisulfonic acid
- Product Name
- 2-Amino-1,5-naphthalenedisulfonic acid
- CAS No.
- 117-62-4
- Chemical Name
- 2-Amino-1,5-naphthalenedisulfonic acid
- Synonyms
- SULFO TOBIAS ACID;D SALT;5-sulfo-tobiasaci;SULPHOTOBIAS ACID;Sulfonic Tobias Acid;Sulfo Tobias Acid(STA);kyselinasulfo-tobiasova;Sulfonated trimeric acid;2-amino-1,5-naphthalenedisulfonic;2-amino-5-naphthalenedisulfonicacid
- CBNumber
- CB0704041
- Molecular Formula
- C10H9NO6S2
- Formula Weight
- 303.31
- MOL File
- 117-62-4.mol
2-Amino-1,5-naphthalenedisulfonic acid Property
- Boiling point:
- 205.8°C (rough estimate)
- Density
- 1.6329 (rough estimate)
- refractive index
- 1.7330 (estimate)
- storage temp.
- 2-8°C
- pka
- -0.51±0.40(Predicted)
- Water Solubility
- soluble
- LogP
- -1.85
- CAS DataBase Reference
- 117-62-4(CAS DataBase Reference)
- EPA Substance Registry System
- 1,5-Naphthalenedisulfonic acid, 2-amino- (117-62-4)
N-Bromosuccinimide Price
- Product number
- S458813
- Product name
- 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID
- Purity
- Aldrich
- Packaging
- 250mg
- Price
- $179
- Updated
- 2024/03/01
- Product number
- A618853
- Product name
- 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID
- Packaging
- 1g
- Price
- $50
- Updated
- 2021/12/16
- Product number
- A618853
- Product name
- 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID
- Packaging
- 2.5g
- Price
- $115
- Updated
- 2021/12/16
- Product number
- CHM0032199
- Product name
- 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID
- Purity
- 95.00%
- Packaging
- 250G
- Price
- $4838.87
- Updated
- 2021/12/16
- Product number
- FA33517
- Product name
- 2-Amino-1,5-naphthalenedisulfonic acid
- Packaging
- 2g
- Price
- $71.9
- Updated
- 2021/12/16
2-Amino-1,5-naphthalenedisulfonic acid Chemical Properties,Usage,Production
Description
2-Aminonaphthalene-1,5-disulfonic acid [117-62-4]. 5-sulfo-Tobias acid, C10H9NO6S2, Mr 303.32, is purified by crystallization of the dipotassium salt from water. Alkali fusion results in formation of 2-amino-5-hydroxynaphthalene-1-sulfonic acid. Sulfonation (40 % oleum, 100℃) gives 2-aminonaphthalene-1,5,7-trisulfonic acid. Heating with aqueous sulfuric acid produces 2-aminonaphthalene-5- sulfonic acid. The diazo compound is converted to 2-diazo-1-hydroxynaphthalene-5-sulfonic acid on treatment with alkaline hypochlorite.
Chemical Properties
BEIGE POWDER
Uses
?As a diazo component in orange and red azo reactive dyes, 2-Amino-1,5-naphthalenedisulfonic acid gives more bathochromic shades than Tobias acid.
Production Methods
Sulfonation of Tobias acid to produce 2-aminonaphthalene-5-sulfonic acid proceeds via 2-Aminonaphthalene-1,5-disulfonic acid, which is isolated from the quenched reaction mixture with careful avoidance of desulfonation.
2-Amino-1,5-naphthalenedisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2-Amino-1,5-naphthalenedisulfonic acid manufacturers
- Product
- 2-Amino-1,5-naphthalenedisulfonic acid 117-62-4
- Price
- US $0.00/kg
- Min. Order
- 20kg
- Purity
- 99%
- Supply Ability
- 20 tons
- Release date
- 2024-10-08
- Product
- 2-Amino-1, 5-Naphthalenedisulfonic Acid 117-62-4
- Price
- US $5.00-2.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10000kg
- Release date
- 2024-08-15
- Product
- 2-Amino-1,5-naphthalenedisulfonic acid 117-62-4
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 97.0%
- Supply Ability
- 100 tons
- Release date
- 2022-02-20