3-Mercapto-1-propanol
Also known as: 3-Mercaptopropan-1-ol, 3-Sulfanyl-1-propanol, 3-hydroxy-1-propanethiol, 3-hydroxypropanethiol, 3-hydroxypropylmercaptan, 1-mercapto-3-propanol, 1-propanol,3-mercapto, Mercaptopropanol, 1-mercapto-3-hydroxypropane, 3-mercapto propanol
3-Mercapto-1-propanol (CAS 19721-22-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C3H8OS and a molecular weight of 92.16000 g/mol. Key properties include a boiling point of 81ºC(10 torr), a density of 1.028g/cm3 and a flash point of 66.4ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19721-22-3
- Jingsj CID
- J-20298-2
- Molecular Formula
- C3H8OS
- Molecular Weight
- 92.16000 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 81ºC(10 torr) |
|---|---|
| Density | 1.028g/cm3 |
| Flash Point | 66.4ºC |
| Exact Mass | 92.02960 |
| PSA | 59.03000 |
| LogP | 0.29860 |
| Vapor Pressure | 0.188mmHg at 25°C |
| Refractive Index | n20/D 1.495(lit.) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Mercapto-1-propanol?
The CAS number of 3-Mercapto-1-propanol is 19721-22-3.
What are the molecular formula and molecular weight of 3-Mercapto-1-propanol?
3-Mercapto-1-propanol has molecular formula C3H8OS and molecular weight 92.16000 g/mol.
Is 3-Mercapto-1-propanol hazardous?
3-Mercapto-1-propanol has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of 3-Mercapto-1-propanol?
For 3-Mercapto-1-propanol, Upstream Products: 3-Bromo-1-propanol, Ethyl 3-mercaptopropionate, 3-Chloro-1-propanol; Downstream Products: 3-(Methylthio)-1-propanol, Thietane, 3-(ethylthio)propanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Mercapto-1-propanol (CAS 19721-22-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20298-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.