ChemicalBook > CAS DataBase List > 6-Amino-1-naphthalenesulfonic acid

6-Amino-1-naphthalenesulfonic acid

Product Name
6-Amino-1-naphthalenesulfonic acid
CAS No.
81-05-0
Chemical Name
6-Amino-1-naphthalenesulfonic acid
Synonyms
D ACID;DAHL'S ACID;2-Naphthylamine-5-sulfonicaci;2-NAPHTHYLAMINE-5-SULFONIC ACID;6-Aminonaphthalene-1-sulfonicaci;2-AMINO-5-NAPHTHALENESULFONIC ACID;2-AMINONAPHTHALENE-5-SULFONIC ACID;BETA-NAPHTHYLAMINE-5-SULFONIC ACID;6-aminonaphthalene-1-sulfonic acid;6-AMINO-1-NAPHTHALENESULFONIC ACID
CBNumber
CB3782572
Molecular Formula
C10H9NO3S
Formula Weight
223.25
MOL File
81-05-0.mol
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6-Amino-1-naphthalenesulfonic acid Property

Density 
1.3588 (rough estimate)
refractive index 
1.6500 (estimate)
storage temp. 
under inert gas (nitrogen or Argon) at 2–8 °C
form 
powder to crystal
pka
-0.33±0.40(Predicted)
color 
White to Light yellow to Light red
Water Solubility 
0.33g/L(20 ºC)
Merck 
14,6407
CAS DataBase Reference
81-05-0(CAS DataBase Reference)
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Safety

RIDADR 
1759
HazardClass 
8
PackingGroup 
III
HS Code 
29269095
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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

TCI Chemical
Product number
A0347
Product name
6-Amino-1-naphthalenesulfonic Acid
Purity
>97.0%(HPLC)(T)
Packaging
25g
Price
$66
Updated
2024/03/01
TCI Chemical
Product number
A0347
Product name
6-Amino-1-naphthalenesulfonic Acid
Purity
>97.0%(HPLC)(T)
Packaging
500g
Price
$555
Updated
2024/03/01
TRC
Product number
A576808
Product name
6-Amino-1-naphthalenesulfonic Acid
Packaging
2.5g
Price
$75
Updated
2021/12/16
AK Scientific
Product number
L196
Product name
2-Aminonaphthalene-5-sulfonicacid
Packaging
1g
Price
$21
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0021583
Product name
2-NAPHTHYL AMINE 5-SULFONIC ACID
Purity
95.00%
Packaging
1G
Price
$597.87
Updated
2021/12/16
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6-Amino-1-naphthalenesulfonic acid Chemical Properties,Usage,Production

Chemical Properties

2-Aminonaphthalene-5-sulfonic acid [81-05-0]. (6-aminonaphthalene-1-sulfonic acid), Dahl’s acid, Dressel acid, D acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles although only 0.4 % soluble at 100℃. The sodium, calcium, and barium salts are moderately soluble in water. Bromination in acetic acid gives the 1-bromo derivative. Sulfonation with oleum gives a mixture of 2-aminonaphthalene-5,7-disulfonic acid together with some 1,5-disulfonic acid. Fusion with potassium hydroxide at 260℃ yields 6-amino-1-naphthol.

Production Methods

Tobias acid is added to a mixture of sulfuric acid and oleum, and the reaction is completed by stirring for 12 h at 25℃. The resulting sulfonation mass, containing mainly 2-aminonaphthalene-1,5-disulfonic acid, is poured into water and heated at 105℃ for 3 h to desulfonate and precipitate the product which, after cooling, is filtered off; the yield is 95 %.

6-Amino-1-naphthalenesulfonic acid Preparation Products And Raw materials

Raw materials

2-Naphthylamine Sodium sulfonate

Preparation Products

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View Lastest Price from 6-Amino-1-naphthalenesulfonic acid manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
6-Amino-1-naphthalenesulfonic acid 81-05-0
Price
US $45.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-05-31
Shaanxi Dideu Medichem Co. Ltd
Product
6-Amino-1-naphthalenesulfonic Acid 81-05-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%+
Supply Ability
100 tons
Release date
2019-12-30
Career Henan Chemical Co
Product
6-Amino-1-naphthalenesulfonic acid 81-05-0
Price
US $2.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
100g , 1kg, 5kg , 50kg
Release date
2020-01-07

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