1,3-Propanedisulfonic acid
1,3-丙二磺酸
Also known as: Eprodisate, propane-1,3-disulfonic acid, 1,3-Propanedisulphonic acid, 1,3-Propanedisulfonic acid (50-60% in water), 1,3-Propanedisulfonic acid, 70% w/v aq. soln., MFCD00191483, UNII-6QFP76V7S7
1,3-Propanedisulfonic acid (CAS 21668-77-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H8O6S2 and a molecular weight of 204.222 g/mol. It is also known as Eprodisate, propane-1,3-disulfonic acid and 1,3-Propanedisulphonic acid. Key properties include a melting point of 120-124ºC and a density of 1.8±0.1 g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21668-77-9
- Jingsj CID
- J-46832-3
- Molecular Formula
- C3H8O6S2
- Chinese Name
- 1,3-丙二磺酸
- Molecular Weight
- 204.222 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 120-124ºC |
|---|---|
| Density | 1.8±0.1 g/cm3 |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 1,3-Propanedisulfonic acid?
The CAS number of 1,3-Propanedisulfonic acid is 21668-77-9.
What are the molecular formula and molecular weight of 1,3-Propanedisulfonic acid?
1,3-Propanedisulfonic acid has molecular formula C3H8O6S2 and molecular weight 204.222 g/mol.
Is 1,3-Propanedisulfonic acid hazardous?
1,3-Propanedisulfonic 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. "1,3-Propanedisulfonic acid (CAS 21668-77-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46832-3 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.