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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
Molecular Weight:
303.31
MDL Number:
MFCD00021513
MOL File:
118-33-2.mol
MSDS File:
SDS
Last updated:2024-09-04 16:41:36

2-Naphthylamine-5,7-disulfonic acid Properties

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)
FDA UNII VP7LWM9S94
EPA Substance Registry System 1,3-Naphthalenedisulfonic acid, 6-amino- (118-33-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338
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.

2-Naphthylamine-5,7-disulfonic acid price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC N325055 2-Naphthylamine-5,7-disulfonicAcid 118-33-2 100mg $75 2021-12-16 Buy
Biosynth Carbosynth FA41567 2-Aminonaphthalene-5,7-disUlfonic acid 118-33-2 1g $84 2021-12-16 Buy
Matrix Scientific 097328 6-Aminonaphthalene-1,3-disulfonic acid 95+% 118-33-2 1g $104 2021-12-16 Buy
Biosynth Carbosynth FA41567 2-Aminonaphthalene-5,7-disUlfonic acid 118-33-2 2g $134.4 2021-12-16 Buy
AK Scientific U257 2-Aminonaphthalene-5,7-disulfonicacid 118-33-2 1g $180 2021-12-16 Buy
Product number Packaging Price Buy
N325055 100mg $75 Buy
FA41567 1g $84 Buy
097328 1g $104 Buy
FA41567 2g $134.4 Buy
U257 1g $180 Buy

2-Naphthylamine-5,7-disulfonic acid Chemical Properties,Uses,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

Global( 129)Suppliers
Supplier Tel Email Country ProdList Advantage
Finetech Industry Limited
+86-27-87465837 +8618971612321 info@finetechnology-ind.com China 9639 58
Shenzhen Nexconn Pharmatechs Ltd
+86-755-89396905 +86-15013857715 admin@nexconn.com China 10310 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28172 58
Hubei xin bonus chemical co. LTD
86-13657291602 linda@hubeijusheng.com CHINA 22963 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 49374 58
career henan chemical co
+86-0371-86658258 +8613203830695 factory@coreychem.com China 29811 58
Richest Group Ltd
18017061086 oled@richest-group.com CHINA 5600 58
SIMAGCHEM CORP
+86-13806087780 sale@simagchem.com China 17365 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34553 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250 1026@dideu.com China 22883 58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Naphthylamine-5,7-disulfonic acid  pictures 2022-08-31 2-Naphthylamine-5,7-disulfonic acid
118-33-2
US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
2-Naphthylamine-5,7-disulfonic acid  pictures 2020-02-26 2-Naphthylamine-5,7-disulfonic acid
118-33-2
US $0.00-0.00 / KG 1KG 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
2-Naphthylamine-5,7-disulfonic acid pictures 2020-02-01 2-Naphthylamine-5,7-disulfonic acid
118-33-2
US $1.00 / KG 1KG Min98% HPLC g/kg/ton Career Henan Chemical Co
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