5-Amino-2-methylbenzenesulfonic acid
Also known as: 2-Methyl-5-aminobenzene sulfonic acid, 3-Amino-6-methylbenzenesulfonic acid, 4-Amino-2-sulfotoluene, 4-Amino-o-toluenesulfonic acid, 4-Amino-toluene-2-sulfonic acid, 5-Amino-2-methylbenzene-1-sulfonic acid, 5-Amino-2-methylbenzenesulfonic acid, 5-Amino-o-toluenesulfonic acid, Benzenesulfonic acid, 5-amino-2-methyl-, o-Toluenesulfonic acid, 4-amino-, p-Toluidine-3-sulfonic acid
5-Amino-2-methylbenzenesulfonic acid (CAS 118-88-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H9NO3S and a molecular weight of 187.216 g/mol. Key properties include a melting point of >295 °C (subl.)(lit.) and a density of 1.4±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 118-88-7
- Jingsj CID
- J-26804-2
- Molecular Formula
- C7H9NO3S
- Molecular Weight
- 187.216 g/mol
- Category
- Solvents
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >295 °C (subl.)(lit.) |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Exact Mass | 187.030319 |
| PSA | 88.77000 |
| LogP | -0.60 |
| Refractive Index | 1.610 |
| Additional Property | 56 g/L (20 ºC) |
Customs & Trade Information
| HS Code | 2921430090 |
|---|---|
| Summary | HS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 5-Amino-2-methylbenzenesulfonic acid?
The CAS number of 5-Amino-2-methylbenzenesulfonic acid is 118-88-7.
What are the molecular formula and molecular weight of 5-Amino-2-methylbenzenesulfonic acid?
5-Amino-2-methylbenzenesulfonic acid has molecular formula C7H9NO3S and molecular weight 187.216 g/mol.
What are the upstream and downstream products of 5-Amino-2-methylbenzenesulfonic acid?
For 5-Amino-2-methylbenzenesulfonic acid, Upstream Products: p-Toluidine, p-Toluidine sulfate, 4-Aminotoluene-3-sulfonic acid; Downstream Products: 2-Amino-5-methylbenzene-1,4-disulfonic acid, 4-Aminotoluene-3-sulfonic acid, o-Toluenesulfonic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Amino-2-methylbenzenesulfonic acid (CAS 118-88-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26804-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.