ChemicalBook > CAS DataBase List > 2-Naphthylamine-5,7-disulfonic acid

2-Naphthylamine-5,7-disulfonic acid

Product Name
2-Naphthylamine-5,7-disulfonic acid
CAS No.
118-33-2
Chemical Name
2-Naphthylamine-5,7-disulfonic acid
Synonyms
amino-iacid;AMINO J-ACID;kyselinaamino-i;2-Naphthylamin-5,7-disulfonsure;2-naftylamin-5,7-disulfonansodny;6-amino-1,3-naphthalenedisulfonic;2-Naphthylamine-5,7-disulfonicaci;6-amino-3-naphthalenedisulfonicacid;2-Naphthylamine-5,7-disulfonicaacid;2-NAPHTHYLAMINE-5,7-DISULFONIC ACID
CBNumber
CB9207888
Molecular Formula
C10H9NO6S2
Formula Weight
303.31
MOL File
118-33-2.mol
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2-Naphthylamine-5,7-disulfonic acid Property

Boiling point:
568.34℃[at 101 325 Pa]
Density 
1.769±0.06 g/cm3(Predicted)
vapor pressure 
0Pa at 25℃
pka
-0.91±0.40(Predicted)
Water Solubility 
229g/L at 15℃
InChI
InChI=1S/C10H9NO6S2/c11-7-1-2-9-6(3-7)4-8(18(12,13)14)5-10(9)19(15,16)17/h1-5H,11H2,(H,12,13,14)(H,15,16,17)
InChIKey
KZCSUEYBKAPKNH-UHFFFAOYSA-N
SMILES
C1(S(O)(=O)=O)=C2C(C=C(N)C=C2)=CC(S(O)(=O)=O)=C1
LogP
-1.85
CAS DataBase Reference
118-33-2(CAS DataBase Reference)
EPA Substance Registry System
1,3-Naphthalenedisulfonic acid, 6-amino- (118-33-2)
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Safety

RIDADR 
1759
HazardClass 
8
PackingGroup 
III
Toxicity
rat,LD50,oral,2gm/kg (2000mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1059, 1986.
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

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N-Bromosuccinimide Price

TRC
Product number
N325055
Product name
2-Naphthylamine-5,7-disulfonicAcid
Packaging
100mg
Price
$75
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA41567
Product name
2-Aminonaphthalene-5,7-disUlfonic acid
Packaging
1g
Price
$84
Updated
2021/12/16
Matrix Scientific
Product number
097328
Product name
6-Aminonaphthalene-1,3-disulfonic acid
Purity
95+%
Packaging
1g
Price
$104
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA41567
Product name
2-Aminonaphthalene-5,7-disUlfonic acid
Packaging
2g
Price
$134.4
Updated
2021/12/16
AK Scientific
Product number
U257
Product name
2-Aminonaphthalene-5,7-disulfonicacid
Packaging
1g
Price
$180
Updated
2021/12/16
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2-Naphthylamine-5,7-disulfonic acid Chemical Properties,Usage,Production

Chemical Properties

White glossy long prismatic needle-like crystals, the crystals precipitated from water contain 5 molecules of crystal water. The solubility in water at 20°C is 23%. Its monosodium salt and monopotassium salt are commonly used in industry, both of which are soluble in water, and the salt solution has green fluorescence.

Uses

2-Naphthylamine-5,7-disulfonic acid is an intermediate for the preparation of J acid, bis-J acid, phenyl J acid and scarlet acid.

Hazard

Skin - Rabbit 2 mg/24h severe; Eye - Rabbit 0.75 mg/24h severe

Flammability and Explosibility

Not classified

Synthesis

2-Naphthylamine-5,7-disulfonic acid can be obtained by hydrolysis of 2-naphthylamine-1,5,7-trisulfonic acid. Add sulfuric acid, sodium sulfate and 2-naphthylamine-1,5,7-trisulfonic acid into water, keep warm at 110-120°C for 4 hours, cool and filter, and wash in sodium sulfate solution to obtain the product.

2-Naphthylamine-5,7-disulfonic acid Preparation Products And Raw materials

Raw materials

2-Naphthylamine Trisulfonic acid

Preparation Products

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View Lastest Price from 2-Naphthylamine-5,7-disulfonic acid manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
2-Naphthylamine-5,7-disulfonic acid 118-33-2
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
2-Naphthylamine-5,7-disulfonic acid 118-33-2
Price
US $1.00/KG
Min. Order
1KG
Purity
Min98% HPLC
Supply Ability
g/kg/ton
Release date
2020-01-28

118-33-2, 2-Naphthylamine-5,7-disulfonic acidRelated Search:

Dinonylnaphthalenesulfonic acid Sulfanilic acid Nickel bis(sulphamidate) 1-Naphthylamine Sulfamic acid Glycine Dioctyl sulfosuccinate sodium salt Dihydroergotoxine mesylate Sulfamic acid monosodium salt 2,4-Xylenesulfonic acid Sodium xylenesulfonate 4-Amino-benzenesulfonic acid monosodium salt Sodium diphenylamine-4-sulfonate 6-Aminocaproic acid Evans Blue 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID DISODIUM SALT CHICAGO SKY BLUE 6B CHLORAZOL BLUE RW

  • 2-naftylamin-5,7-disulfonansodny
  • 2-Naphthylamine-5,7-disulfonicaacid
  • 6-amino-1,3-naphthalenedisulfonic
  • 6-amino-3-naphthalenedisulfonicacid
  • 6-aminonaphthalene-1,3-disulphonicacid
  • 6-amino-naphthalene-3-disulfonicacid
  • amino-iacid
  • kyselinaamino-i
  • 2-NAPHTHYLAMINE-5,7-DISULPHONIC ACID
  • 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID
  • 2-AMINONAPHTHALENE-5,7-DISULFONIC ACID
  • 6-AMINO-1,3-NAPHTHALENEDISULFONIC ACID
  • AMINO J-ACID
  • 6-aminonaphthalene-1,3-disulfonic acid
  • 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID, 96% HPLC
  • 6-AMINO-1,3-NAPHTHALENE-DISULPHONICACID
  • 2-Naphthylamin-5,7-disulfonsure
  • 1,3-Naphthalenedisulfonic acid, 6-amino-
  • 2--5,7-twoaMinonaphthalenesulfonic acid
  • 2-NaphthylaMine-5,7-disulfonic acid, 3-disulfonic acid
  • Sodium 2-Naphthylamine-5,7-disulfonate
  • 6-amino-1,3-naphthalenesulfonic acid
  • 2-Naphthylamine-5,7-disulfonicaci
  • 2-Naphthylamine-5,7-disulfonic acid ISO 9001：2015 REACH
  • 2-Amino-5,7-disulfonic acid (amino acid)
  • 118-33-2
  • Anilines, Aromatic Amines and Nitro Compounds
  • Organic acids
  • Intermediates of Dyes and Pigments