ChemicalBook > CAS DataBase List > 1-Amino-2-naphthol-4-sulfonic acid

1-Amino-2-naphthol-4-sulfonic acid

Product Name
1-Amino-2-naphthol-4-sulfonic acid
CAS No.
116-63-2
Chemical Name
1-Amino-2-naphthol-4-sulfonic acid
Synonyms
1,2,4-acid;TIMTEC-BB SBB008870;1-Amino-2-naphthol-4;LABOTEST-BB LT00454379;3-Hydroxynaphthionic acid;1-amino-4-sulfo-2-naphthol;1-Amino-2-naphthol-4-sulfonic;1-AMINO-2-NAPHTH-4-SULFONIC AC;Amino-2-Naphthol-4-SulfonicAcid;1-Amino-2-naphthol-4-sulfonate.
CBNumber
CB5345948
Molecular Formula
C10H9NO4S
Formula Weight
239.25
MOL File
116-63-2.mol
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1-Amino-2-naphthol-4-sulfonic acid Property

Melting point:
290 °C (dec.)(lit.)
Density 
1.4338 (rough estimate)
refractive index 
1.6500 (estimate)
storage temp. 
Store below +30°C.
solubility 
DMSO (Slightly), Methanol (Slightly)
pka
-0.49±0.40(Predicted)
form 
Powder
color 
White to light pink
Water Solubility 
insoluble
Merck 
14,454
BRN 
2697469
Stability:
Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents.
InChIKey
RXCMFQDTWCCLBL-UHFFFAOYSA-N
CAS DataBase Reference
116-63-2(CAS DataBase Reference)
NIST Chemistry Reference
1-Naphthalenesulfonic acid,4-amino-3-hydroxy-(116-63-2)
EPA Substance Registry System
1-Naphthalenesulfonic acid, 4-amino-3-hydroxy- (116-63-2)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
37/39-26
RIDADR 
3265
WGK Germany 
3
RTECS 
QK1292000
TSCA 
Yes
HazardClass 
IRRITANT
PackingGroup 
III
HS Code 
29222100
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
398969
Product name
4-Amino-3-hydroxy-1-naphthalenesulfonic acid
Purity
ACS reagent, ≥90%
Packaging
25g
Price
$97
Updated
2024/03/01
Sigma-Aldrich
Product number
1.00099
Product name
1-Amino-2-hydroxy-4-naphthalenesulfonic acid
Purity
for determination of phosphate
Packaging
25g
Price
$136
Updated
2024/03/01
Sigma-Aldrich
Product number
1.00099
Product name
1-Amino-2-hydroxy-4-naphthalenesulfonic acid
Purity
for determination of phosphate
Packaging
100g
Price
$297
Updated
2024/03/01
Sigma-Aldrich
Product number
08751
Product name
4-Amino-3-hydroxy-1-naphthalenesulfonic acid
Purity
for spectrophotometric det. of Si, ≥95.0%
Packaging
25g
Price
$52.4
Updated
2024/03/01
TCI Chemical
Product number
A0367
Product name
1-Amino-2-naphthol-4-sulfonic Acid
Purity
>97.0%(T)
Packaging
25g
Price
$35
Updated
2024/03/01
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1-Amino-2-naphthol-4-sulfonic acid Chemical Properties,Usage,Production

Chemical Properties

1-Amino-2-hydroxynaphthalene-4-sulfonic acid [116-63-2]. (4-amino-3-hydroxynaphthalene-1-sulfonic acid), B€oniger acid, C10H9NO4S, Mr 239.2, is obtained as white or gray needles of the hemihydrate, which is only sparingly soluble in hot water. The alkali-metal salts are soluble in water, but the solutions slowly oxidize in air. Oxidation with nitric acid gives 1,2- naphthoquinone-4-sulfonic acid.

Uses

4-Amino-3-hydroxy-1-naphthalenesulfonic acid is used as mordant dyes and acid dyes intermediate.

Uses

1-Amino-2-naphthol-4-sulfonic acid can be used in determination of phosphate.

Definition

ChEBI: 4-amino-3-hydroxynaphthalene-1-sulfonic acid is a naphthalenesulfonic acid and an aminonaphthalene. It has a role as a mutagen. It is functionally related to a 2-naphthol.

Production Methods

2-Naphthol is dissolved in dilute aqueous sodium hydroxide and precipitated in finely divided form by addition of sulfuric acid at 5℃. Sodium nitrite solution is added to the slightly alkaline suspension, followed by sulfuric acid to effectthe nitrosation while the temperature is held at 5 – 8℃. The suspension of 1-nitroso2-naphthol is neutralized with aqueous sodium hydroxide; a solution of sodium bisulfite is then added. The temperature is allowed to rise to 20℃, and the soluble bisulfite addition complex is formed. Excess sulfuric acid is then added and the temperature is raised to 40℃, whereupon reductive rearrangement takes place and the product slowly crystallizes at 50℃. Filtration and washing give the product as a 25 % paste in 80 % yield. All plant items and reactants must be free from iron to avoid complex formation.

Purification Methods

Purify it by warming 15g of the acid, 150g of NaHSO3 and 5g of Na2SO3(anhydrous) with 1L of water to ca 90o, shaking until most of the solid had dissolved, then filtering hot. The precipitate obtained by adding 10mL of conc HCl to the cooled filtrate is collected, washed with 95% EtOH until the washings are colourless, and is dried under vacuum over CaCl2. It is stored in a dark-coloured bottle, in the cold [Chanley et al. J Am Chem Soc 74 4347 1952]. [Beilstein 14 IV 2825.]

1-Amino-2-naphthol-4-sulfonic acid Preparation Products And Raw materials

Raw materials

Sodium sulfite Sodium bisulfite Sodium nitrite 2-Naphthol Sulfuric acid Sodium metabisulfite

Preparation Products

Acid Black 168 POTASSIUM 1,2-NAPHTHOQUINONE-4-SULFONIC ACID Mordant Black 17 2-DIAZO-1-NAPHTHOL-4-SULFONIC ACID HYDRATE ACID BLUE 161, PURE Mordant Red 7 1-Diazo-2-naphthol-4-sulfonic acid Mordant Black 3 Acid violet 90
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View Lastest Price from 1-Amino-2-naphthol-4-sulfonic acid manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
1-Amino-2-naphthol-4-sulfonic acid 116-63-2
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-06
Hebei Weibang Biotechnology Co., Ltd
Product
1-Amino-2-naphthol-4-sulfonic acid 116-63-2
Price
US $9.90/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2021-10-12
Hebei Mojin Biotechnology Co., Ltd
Product
1-Amino-2-naphthol-4-sulfonic acid 116-63-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-08-24

116-63-2, 1-Amino-2-naphthol-4-sulfonic acidRelated Search:

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