ChemicalBook >> CAS DataBase List >>4-Aminotoluene-3-sulfonic acid
4-Aminotoluene-3-sulfonic acid
- CAS No.
- 88-44-8
- Chemical Name:
- 4-Aminotoluene-3-sulfonic acid
- Synonyms
- PTMS;4B ACID;2-AMINO-5-METHYLBENZENESULFONIC ACID;PTMSA;red4bacid;CID121231000;4B Acid, Pure;toluidine-sulfonicacid;5-Methylorthanilic acid;M-TOLUENE SULPHONIC ACID
- CBNumber:
- CB0714468
- Molecular Formula:
- C7H9NO3S
- Molecular Weight:
- 187.22
- MDL Number:
- MFCD00007908
- MOL File:
- 88-44-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-27 22:50:14
| Product description | Number | Pack Size | Price |
| 4-Aminotoluene-3-sulfonic acid 99% | 218766 | 250g | $92.8 |
| p-Toluidine-2-sulfonic Acid >98.0%(HPLC)(T) | A0328 | 25g | $17 |
| p-Toluidine-2-sulfonic Acid >98.0%(HPLC)(T) | A0328 | 500g | $45 |
| 4-Aminotoluene-3-sulfonic acid | AAA08844 | 0.25g | $250 |
| 4-Aminotoluene-3-sulfonic acid | AAA08844 | 2.5g | $906.25 |
| More product size | |||
| Melting point | 300 °C |
|---|---|
| Boiling point | 500°C (rough estimate) |
| Density | 1.431 |
| refractive index | 1.6100 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | water: soluble6g/L at 20°C |
| pka | -1.35±0.42(Predicted) |
| form | powder to crystal |
| color | White to Light red to Green |
| Water Solubility | 32g/L(19 ºC) |
| BRN | 2211509 |
| InChI | 1S/C7H9NO3S/c1-5-2-3-6(8)7(4-5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11) |
| InChIKey | LTPSRQRIPCVMKQ-UHFFFAOYSA-N |
| SMILES | Cc1ccc(N)c(c1)S(O)(=O)=O |
| LogP | -0.67 at 25℃ |
| CAS DataBase Reference | 88-44-8(CAS DataBase Reference) |
| FDA UNII | FF86IBK68Z |
| EPA Substance Registry System | 4-Aminotoluene-3-sulfonic acid (88-44-8) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314-H318-H320 | |||||||||
| Precautionary statements | P260h-P301+P330+P331-P303+P361+P353-P405-P501a-P280-P305+P351+P338-P310-P264-P305+P351+P338+P337+P313 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | T,C,Xi | |||||||||
| Risk Statements | 45-34-36 | |||||||||
| Safety Statements | 53-26-27-28-36/37/39-45-28A | |||||||||
| RIDADR | UN 2585 8/PG 3 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | XT6320000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29214300 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
4-Aminotoluene-3-sulfonic acid price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 218766 | 4-Aminotoluene-3-sulfonic acid 99% | 88-44-8 | 250g | $92.8 | 2026-04-30 | Buy |
| TCI Chemical | A0328 | p-Toluidine-2-sulfonic Acid >98.0%(HPLC)(T) | 88-44-8 | 25g | $17 | 2026-04-30 | Buy |
| TCI Chemical | A0328 | p-Toluidine-2-sulfonic Acid >98.0%(HPLC)(T) | 88-44-8 | 500g | $45 | 2026-04-30 | Buy |
| Biosynth | AAA08844 | 4-Aminotoluene-3-sulfonic acid | 88-44-8 | 0.25g | $250 | 2026-06-04 | Buy |
| Biosynth | AAA08844 | 4-Aminotoluene-3-sulfonic acid | 88-44-8 | 2.5g | $906.25 | 2026-06-04 | Buy |
4-Aminotoluene-3-sulfonic acid Chemical Properties,Uses,Production
Description
4-Aminotoluene-3-sulfonic acid is produced by baking p-toluidine sulfate at 180 ℃ and 97 – 101 mbar, dissolving the product in 3 % sodium hydroxide solution, and precipitating the free acid by adding concentrated hydrochloric acid.
Chemical Properties
BEIGE CRYSTALLINE POWDER
Uses
4-Aminotoluene-3-sulfonic acid was used to investigate the enrichment of aminobenzoic acids and aminotoluenesulfonic acids using graphitized carbon black (GCB) by solid-phase extraction. It was also used in the synthesis of azobenzene derivatives.
General Description
4-Aminotoluene-3-sulfonic acid acts as Schiff base ligand and forms binary and ternary complexes with Co(II), Ni(II), Cu(II) and Zn(II) ions.
Flammability and Explosibility
Non flammable
4-Aminotoluene-3-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Pigment Red 21
Pigment Red 57:1
Reactive Brilliant Orange K-R
2,6-Dibromo-4-methylaniline
Reactive Red 252
4-Hydroxy-7-phenylamino-3-[[2,5-dimethyl-4-[(4-methyl-2-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium salt
ACID BLUE 145
Reactive Red 189
Reactive Red 45
Reactive Red 256
Acid Blue 81:1
Reactive Red 88
trisodium 5-[[4-chloro-6-(ethylphenylamino)-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulphonatophenyl)azo]naphthalene-2,7-disulphonate
4-Hydroxy-7-phenylamino-3-[[5-methyl-4-[(4-methyl-2-sodiosulfophenyl)azo]-2-methoxyphenyl]azo]naphthalene-2-sulfonic acid sodium salt
1of3
Global( 298)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| NINGBO INNO PHARMCHEM CO., LTD. | 13867897135 | sales@nbinno.com | CHINA | 923 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +8613065062079 | sales@sdzschem.com | China | 1497 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6366 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
View Lastest Price from 4-Aminotoluene-3-sulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-28 | 4-Aminotoluene-3-sulfonic acid
88-44-8
|
$9.00 | 1KG | 99.9 | 1 ton | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | 4-Aminotoluene-3-sulfonic acid
88-44-8
|
$100.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-12-01 | 2-Amino-5-methylbenzenesulfonic acid
88-44-8
|
1KG | 98.0% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd |
-
- 4-Aminotoluene-3-sulfonic acid
88-44-8
- $9.00
- 99.9
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 4-Aminotoluene-3-sulfonic acid
88-44-8
- $100.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 2-Amino-5-methylbenzenesulfonic acid
88-44-8
- 98.0%
- Shaanxi Dideu New Materials Co. Ltd
88-44-8(4-Aminotoluene-3-sulfonic acid)Related Search:
Sodium p-toluenesulfonate
Sulfamic acid
Sulfanilic acid
4-Amino-benzenesulfonic acid monosodium salt
Sodium xylenesulfonate
Nickel bis(sulphamidate)
p-Toluenesulfonic acid
Glycine
Aminoethoxyvinyl glycine hydrochloride
TRYPAN RED
1of4
PTMSA
P-TOLUIDINE-2-SULFONIC ACID
P-TOLUIDINE-M-SULFONIC ACID
6-amino-m-toluenesulfonicaci
kyselina4-toluidin-3-sulfonova
p-Methylaniline-2-sulfonicaicd
p-Toluidine-2-sulfonicscid
red4bacid
toluidine-sulfonicacid
4-aminotoluene-3-sulphonic acid
6-AMINO-M-TOLUENESULFONIC ACID
4-METHYLANILINE-2-SULFONIC ACID
2-AMINO-5-METHYLBENZENE-1-SULFONIC ACID
4-AMINOTOLUENE-3-SULFONIC ACID
2-amino-5-methyl-benzenesulfonicaci
3-Methyl-6-aminobenzenesulfonicacid
4-AMINOTOLUENE-3-SULFONIC ACID, 99% (2-A MINO-5-METHYLBENZENESULFONIC ACID)
4B Acid, Pure
6-AMINO-3-TOLUENESULFONIC ACID
4BACID , 4-AMINOTOLUENE-5-SULFONIC ACID
4-AMINO-META-TOLUENESULPHONICACID
PARA-TOLUIDINE-META-SULPHONICACID
2-AMINO-5-METHYLBENZENESULPHONICACID
4-Aminotoluol-3-sulfonsure
Benzenesulfonic acid,2-amino-5-methyl-
p-Toluidine-6-sulfonic acid (NH2=1)
4-AMINOTOLUENE-3-SULFONIC ACID (2- AMINO-5-METHYLBENZENESULFONIC ACID)
2-Amino-5-methylbenzenesulfonic acid, 4-Methylaniline-2-sulfonic acid
5-Methylorthanilic acid
6-Amino-m-toluenesulfonic acid,99%
6-AMino-M-toluenesulfonic acid, 99% 250GR
4-Aminotoluene-3-sulfonic Acid
4-Methylaniline-2-sulfonic Acid
2-Amino-5-methylbenzenesulfonic Acid
4-toluidine-3- sulphonic acid
4-Aminotoluene-3-sulfonic acid 99%
4-B Acid (6-Amino-M-Toluene Sulfonic Acid)
M-TOLUENE SULPHONIC ACID
p-Toluidine-2-sulfonic Acid >
4-Aminotoluene-3-sulfonic acid ISO 9001：2015 REACH
Factory Price CAS 88-44-8 4-Aminotoluene-3-sulfonic acid
88-44-8 4-Aminotoluene-3-sulfonic acid
Benzenesulfonic Acid Impurity 45
CID121231000
2-amino-5-methyl benzenesulfonic acid (6-amino-m-toluenesulfonic acid)
4 B Acid/2-Amino-5-methylbenzenesulfonic acid
C10228000 4-Aminotoluene-3-sulfoniCacid
4 minotoluene-3-sulfonic acid
m-Toluenesulfonic acid, 6-amino-
2-AMINO-5-METHYLBENZENESULFONIC ACID
4B ACID
PTMS
88-44-8
CH3NH2C6H3SO3H
C7H9NSO3
H2NCH3C6H3SO3H
Building Blocks
Organic Building Blocks
Sulfur Compounds
Sulfonic/Sulfinic Acids
