3-(Methylthio)butanal
3-甲硫基丁醛
Also known as: 3-(Methylthio)butyraldehyde, 3-(Methylsulfanyl)butanal, Butanal, 3-(methylthio)-, FEMA 3374, UNII:1B27G5W046, MFCD00036622, EINECS 240-678-7, 3-Methylthiobutanal
3-(Methylthio)butanal (CAS 16630-52-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H10OS and a molecular weight of 118.197 g/mol. It is also known as 3-(Methylthio)butyraldehyde, 3-(Methylsulfanyl)butanal and Butanal, 3-(methylthio)-. Key properties include a boiling point of 174.0±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 62.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H318 — Causes serious eye damage and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16630-52-7
- Jingsj CID
- J-38685-0
- Molecular Formula
- C5H10OS
- Chinese Name
- 3-甲硫基丁醛
- Molecular Weight
- 118.197 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 174.0±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 62.2±0.0 °C |
| Exact Mass | 118.045235 |
| PSA | 42.37000 |
| LogP | 1.05 |
| Additional Property | 4.1 (vs air) |
| Vapor Pressure | 1.2±0.3 mmHg at 25°C |
| Refractive Index | 1.456 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H318 — Causes serious eye damage
- H331 — Toxic if inhaled
- H341 — Suspected of causing genetic defects
- H400 — Very toxic to aquatic life
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-(Methylthio)butanal?
The CAS number of 3-(Methylthio)butanal is 16630-52-7.
What are the molecular formula and molecular weight of 3-(Methylthio)butanal?
3-(Methylthio)butanal has molecular formula C5H10OS and molecular weight 118.197 g/mol.
Is 3-(Methylthio)butanal hazardous?
3-(Methylthio)butanal has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H318 — Causes serious eye damage; H331 — Toxic if inhaled.
What are the upstream and downstream products of 3-(Methylthio)butanal?
For 3-(Methylthio)butanal, Upstream Products: Crotonaldehyde, Sodium thiomethoxide, Methanethiol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(Methylthio)butanal (CAS 16630-52-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38685-0 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.