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
| 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 Suppliers ( 302)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| future industrial shanghai co., ltd | 400-0066400 13621662912 | sales@jonln.com | China | 1989 | 65 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
| Adamas Reagent, Ltd. | 400-6009262 15618770481 | yhx@titansci.com | China | 14098 | 59 |
View Latest Price from 4-Aminotoluene-3-sulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-20 | 4-Aminotoluene-3-sulfonic acid
88-44-8
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2026-06-30 | 2-Amino-5-methylbenzenesulfonic acid
88-44-8
|
1KG | 98.0% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-05-28 | 4-Aminotoluene-3-sulfonic acid
88-44-8
|
$9.00 | 1KG | 99.9 | 1 ton | Hebei Chuanghai Biotechnology Co,.LTD |
-
- 4-Aminotoluene-3-sulfonic acid
88-44-8
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 2-Amino-5-methylbenzenesulfonic acid
88-44-8
- 98.0%
- Shaanxi Dideu New Materials Co. Ltd
-
- 4-Aminotoluene-3-sulfonic acid
88-44-8
- $9.00
- 99.9
- Hebei Chuanghai Biotechnology Co,.LTD
88-44-8 (4-Aminotoluene-3-sulfonic acid) Related Search:
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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
