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1-Naphthylamine-7-sulfonic acid

1-Naphthylamine-7-sulfonic acid
1-Naphthylamine-7-sulfonic acid structure
Chemical Name:
1-Naphthylamine-7-sulfonic acid
C.I. 26135;CLEVE'S ACID;Cleve's O-acid;1.7 Clevs Acid;CLEVES ACID-1,7;1,7-CLEVES ACID;1,7-CLEVE'S ACID;Cleve's theta-acid;SODIUM NAPTHIONATE;TIMTEC-BB SBB000621
Molecular Formula:
Formula Weight:
MOL File:

1-Naphthylamine-7-sulfonic acid Properties

Melting point:
≥300 °C(lit.)
Boiling point:
220°C (rough estimate)
1.3588 (rough estimate)
refractive index 
1.6500 (estimate)
pK1: 3.66 (25°C)
CAS DataBase Reference
119-28-8(CAS DataBase Reference)
NIST Chemistry Reference
1-Naphthylamine-7-sulfonic acid(119-28-8)
EPA Substance Registry System
2-Naphthalenesulfonic acid, 8-amino-(119-28-8)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 2585 8/PG 3
WGK Germany  2
HazardClass  8
PackingGroup  III
HS Code  29214500
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P310 Immediately call a POISON CENTER or doctor/physician.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

1-Naphthylamine-7-sulfonic acid price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A7782 8-Amino-2-naphthalenesulfonic acid ≥97% 119-28-8 25g $96.9 2018-11-13 Buy
Sigma-Aldrich A7782 8-Amino-2-naphthalenesulfonic acid ≥97% 119-28-8 100g $299 2018-11-13 Buy
TCI Chemical A0356 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) 119-28-8 25g $54 2018-11-22 Buy
TCI Chemical A0356 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) 119-28-8 500g $402 2018-11-22 Buy
Alfa Aesar J65304 8-Aminonaphthalene-2-sulfonic acid, 95% 119-28-8 25g $52.4 2018-11-13 Buy

1-Naphthylamine-7-sulfonic acid Chemical Properties,Uses,Production

Chemical Properties

Brown crystalline


Intermediate of dyestuff

1-Naphthylamine-7-sulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

1-Naphthylamine-7-sulfonic acid Suppliers

Global( 139)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32457 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6374 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3623 58
career henan chemical co
+86-371-86658258 CHINA 20580 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 23982 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20094 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15884 69
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 China 24560 81
BeiJing Hwrk Chemicals Limted 4006990298;010-57411839;0757-86311057;021-51691807
010-87653215;0757-86311057;021-55236763 China 14611 55

View Lastest Price from 1-Naphthylamine-7-sulfonic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-22 1-Naphthylamine-7-sulfonic acid
US $1.00 / kg 1kg 99% Customized career henan chemical co

1-Naphthylamine-7-sulfonic acid Spectrum

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