4-Dodecylbenzenesulfonic acid
4-十二烷基苯磺酸
Also known as: DODECYLBENZENESULFONIC ACID, 4-dodecylbenzenesulfonic acid, mixture of isomers, 4-dodecylbenzene-1-sulfonic acid, 4-dodecylbenzenesulphonic acid, ALKYLARYLSULFONIC ACID, ALKYLBENZENESULFONIC ACID, Benzenesulfonic acid, 4-dodecyl-, N-DODECYLBENZENESULFONIC ACID, NAXEL AAS-98S, p-dodecylbenzenesulfonic acid, p-dodecylbenzenesulphonic acid
4-Dodecylbenzenesulfonic acid (CAS 121-65-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H30O3S and a molecular weight of 326.494 g/mol. It is also known as DODECYLBENZENESULFONIC ACID, 4-dodecylbenzenesulfonic acid, mixture of isomers and 4-dodecylbenzene-1-sulfonic acid. Key properties include a boiling point of 82 °C, a density of 1.1±0.1 g/cm3 and a flash point of 85 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 121-65-3
- Jingsj CID
- J-1956837-9
- Molecular Formula
- C18H30O3S
- Chinese Name
- 4-十二烷基苯磺酸
- Molecular Weight
- 326.494 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 82 °C |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 85 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 4-Dodecylbenzenesulfonic acid?
The CAS number of 4-Dodecylbenzenesulfonic acid is 121-65-3.
What are the molecular formula and molecular weight of 4-Dodecylbenzenesulfonic acid?
4-Dodecylbenzenesulfonic acid has molecular formula C18H30O3S and molecular weight 326.494 g/mol.
Is 4-Dodecylbenzenesulfonic acid hazardous?
4-Dodecylbenzenesulfonic acid has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Dodecylbenzenesulfonic acid (CAS 121-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956837-9 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.