1-Naphthylamine-7-sulfonic acid
                                         
                                        
                                     | 
                                
- $43 - $1309.78
 - Product name: 1-Naphthylamine-7-sulfonic acid
 - CAS: 119-28-8
 - MF: C10H9NO3S
 - MW: 223.25
 - EINECS:204-311-4
 - MDL Number:MFCD00004032
 - Synonyms:TIMTEC-BB SBB000621;SODIUM NAPTHIONATE;SODIUM NAPHTHIONATE;SODIUM 1-NAPHTHYLAMINE-4-SULFONATE;PARA-NAPHTHIONIC ACID, NA SALT;NAPHTHIONIC ACID SODIUM SALT 0.5-WATER;NAPHTHIONIC ACID SODIUM SALT;NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT
 
16 prices
                Selected condition:
                            Brand
                                - AK Scientific
 - American Custom Chemicals Corporation
 - Crysdot
 - Frontier Specialty Chemicals
 - Medical Isotopes, Inc.
 - Sigma-Aldrich
 - TCI Chemical
 - TRC
 
Package
                                    
                                - 1G
 - 5G
 - 10G
 - 25g
 - 50g
 - 100g
 - 500g
 - 1000g
 
- ManufacturerAK Scientific
 - Product numberJ50244
 - Product description1-Naphthylamine-7-sulfonicacid
 - Packaging25g
 - Price$50.3
 - Updated2021-12-16
 - Buy
 
- ManufacturerAK Scientific
 - Product numberJ50244
 - Product description1-Naphthylamine-7-sulfonicacid
 - Packaging100g
 - Price$147
 - Updated2021-12-16
 - Buy
 
- ManufacturerAK Scientific
 - Product numberG539
 - Product description1-Naphthylamine-7-sulfonicacid
 - Packaging500g
 - Price$621
 - Updated2021-12-16
 - Buy
 
- ManufacturerAmerican Custom Chemicals Corporation
 - Product numberCHM0006895
 - Product description1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00%
 - Packaging1G
 - Price$638.1
 - Updated2021-12-16
 - Buy
 
- ManufacturerAmerican Custom Chemicals Corporation
 - Product numberCHM0006895
 - Product description1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00%
 - Packaging5G
 - Price$911.99
 - Updated2021-12-16
 - Buy
 
- ManufacturerAmerican Custom Chemicals Corporation
 - Product numberCHM0006895
 - Product description1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00%
 - Packaging10G
 - Price$1309.78
 - Updated2021-12-16
 - Buy
 
- ManufacturerCrysdot
 - Product numberCD44000704
 - Product description8-Amino-2-naphthalenesulfonic acid 95+%
 - Packaging1000g
 - Price$422
 - Updated2021-12-16
 - Buy
 
- ManufacturerFrontier Specialty Chemicals
 - Product numberJK152682
 - Product description8-Amino-2-naphthalenesulfonic acid
 - Packaging25g
 - Price$43
 - Updated2021-12-16
 - Buy
 
- ManufacturerFrontier Specialty Chemicals
 - Product numberJK152682
 - Product description8-Amino-2-naphthalenesulfonic acid
 - Packaging100g
 - Price$142
 - Updated2021-12-16
 - Buy
 
- ManufacturerMedical Isotopes, Inc.
 - Product number16283
 - Product description8-Amino-2-naphthalenesulfonic acid
 - Packaging5G
 - Price$580
 - Updated2021-12-16
 - Buy
 
- ManufacturerSigma-Aldrich
 - Product numberA7782
 - Product description8-Amino-2-naphthalenesulfonic acid ≥97%
 - Packaging25g
 - Price$77.8
 - Updated2025-07-31
 - Buy
 
- ManufacturerSigma-Aldrich
 - Product numberA7782
 - Product description8-Amino-2-naphthalenesulfonic acid ≥97%
 - Packaging100g
 - Price$207
 - Updated2025-07-31
 - Buy
 
- ManufacturerTCI Chemical
 - Product numberA0356
 - Product description8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T)
 - Packaging25g
 - Price$60
 - Updated2025-07-31
 - Buy
 
- ManufacturerTCI Chemical
 - Product numberA0356
 - Product description8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T)
 - Packaging500g
 - Price$460
 - Updated2021-12-16
 - Buy
 
- ManufacturerTRC
 - Product numberA618353
 - Product description1-Amino-7-naphthalenesulfonicAcid
 - Packaging25g
 - Price$125
 - Updated2021-12-16
 - Buy
 
- ManufacturerTRC
 - Product numberA618353
 - Product description1-Amino-7-naphthalenesulfonicAcid
 - Packaging50g
 - Price$185
 - Updated2021-12-16
 - Buy
 
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy | 
|---|---|---|---|---|---|---|
| AK Scientific | J50244 | 1-Naphthylamine-7-sulfonicacid | 25g | $50.3 | 2021-12-16 | Buy | 
| AK Scientific | J50244 | 1-Naphthylamine-7-sulfonicacid | 100g | $147 | 2021-12-16 | Buy | 
| AK Scientific | G539 | 1-Naphthylamine-7-sulfonicacid | 500g | $621 | 2021-12-16 | Buy | 
| American Custom Chemicals Corporation | CHM0006895 | 1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00% | 1G | $638.1 | 2021-12-16 | Buy | 
| American Custom Chemicals Corporation | CHM0006895 | 1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00% | 5G | $911.99 | 2021-12-16 | Buy | 
| American Custom Chemicals Corporation | CHM0006895 | 1-NAPHTHYLAMINE-7-SULFONIC ACID 95.00% | 10G | $1309.78 | 2021-12-16 | Buy | 
| Crysdot | CD44000704 | 8-Amino-2-naphthalenesulfonic acid 95+% | 1000g | $422 | 2021-12-16 | Buy | 
| Frontier Specialty Chemicals | JK152682 | 8-Amino-2-naphthalenesulfonic acid | 25g | $43 | 2021-12-16 | Buy | 
| Frontier Specialty Chemicals | JK152682 | 8-Amino-2-naphthalenesulfonic acid | 100g | $142 | 2021-12-16 | Buy | 
| Medical Isotopes, Inc. | 16283 | 8-Amino-2-naphthalenesulfonic acid | 5G | $580 | 2021-12-16 | Buy | 
| Sigma-Aldrich | A7782 | 8-Amino-2-naphthalenesulfonic acid ≥97% | 25g | $77.8 | 2025-07-31 | Buy | 
| Sigma-Aldrich | A7782 | 8-Amino-2-naphthalenesulfonic acid ≥97% | 100g | $207 | 2025-07-31 | Buy | 
| TCI Chemical | A0356 | 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) | 25g | $60 | 2025-07-31 | Buy | 
| TCI Chemical | A0356 | 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) | 500g | $460 | 2021-12-16 | Buy | 
| TRC | A618353 | 1-Amino-7-naphthalenesulfonicAcid | 25g | $125 | 2021-12-16 | Buy | 
| TRC | A618353 | 1-Amino-7-naphthalenesulfonicAcid | 50g | $185 | 2021-12-16 | Buy | 
Properties
                        
                        Melting point :≥300 °C(lit.)
Boiling point :220°C (rough estimate)
Density :1.3588 (rough estimate)
refractive index :1.6500 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :Aqueous Base (Slightly), DMSO (Slightly, Sonicated)
form :Powder
pka :pK1: 3.66 (25°C)
Appearance :Gray to brown Solid
Merck :14,2351
BRN :2115629
InChI :InChI=1S/C10H9NO3S/c11-10-3-1-2-7-4-5-8(6-9(7)10)15(12,13)14/h1-6H,11H2,(H,12,13,14)
InChIKey :QEZZCWMQXHXAFG-UHFFFAOYSA-N
SMILES :C1=C2C(C=CC=C2N)=CC=C1S(O)(=O)=O
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)
                        
                    
                Boiling point :220°C (rough estimate)
Density :1.3588 (rough estimate)
refractive index :1.6500 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :Aqueous Base (Slightly), DMSO (Slightly, Sonicated)
form :Powder
pka :pK1: 3.66 (25°C)
Appearance :Gray to brown Solid
Merck :14,2351
BRN :2115629
InChI :InChI=1S/C10H9NO3S/c11-10-3-1-2-7-4-5-8(6-9(7)10)15(12,13)14/h1-6H,11H2,(H,12,13,14)
InChIKey :QEZZCWMQXHXAFG-UHFFFAOYSA-N
SMILES :C1=C2C(C=CC=C2N)=CC=C1S(O)(=O)=O
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)
Safety Information
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| Signal word: | Danger | ||||||||||||||
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Description
Intermediate of dyestuffMore related product prices
Sodium 2-naphthalenesulfonate Amlodipine Besylate 6-Aminocaproic acid 4-Amino-benzenesulfonic acid monosodium salt Ammonium sulfamate Sulfamic acid Folic acid Glycine 1-Aminonaphthalene Taurine 1-DODECANESULFONIC ACID SODIUM SALT Naphthalene-2-sulfonic acid Nickel sulfamate p-Toluenesulfonic acid Sulfanilic acid 13845-18-6 Chlorosulfonic acid 84-89-9 119-79-9 130-13-2Related product price
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$5-2743.13 
Suppliers and manufacturers
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                        
                        Henan Tianfu Chemical Co.,Ltd.  
                    
                    
                        
                        Shanghai Zheyan Biotech Co., Ltd.  
                    
                    
                        
                        Hubei Jusheng Technology Co.,Ltd.   
                    
                    
                        
                        Xiamen AmoyChem Co., Ltd  
                    
                
            
                    
                    

        
