Methallyl isothiocyanate
Also known as: 1-Propene, 3-isothiocyanato-2-methyl-, 2-methyl-2-propenyl isothiocyanate, 2-methyl-3-isothiocyanato-propene, 2-methyl-allyl isothiocyanate, 3-isothiocyanato-2-methylprop-1-ene, Methallyl isothiocyanate technical
Methallyl isothiocyanate (CAS 41834-90-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7NS and a molecular weight of 113.18100 g/mol. Key properties include a boiling point of 69ºC20 mm Hg(lit.), a density of 0.993 g/mL at 25ºC(lit.) and a flash point of 56.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 41834-90-6
- Jingsj CID
- J-46471-1
- Molecular Formula
- C5H7NS
- Molecular Weight
- 113.18100 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 69ºC20 mm Hg(lit.) |
|---|---|
| Density | 0.993 g/mL at 25ºC(lit.) |
| Flash Point | 56.7 °C |
| Exact Mass | 113.03000 |
| PSA | 44.45000 |
| LogP | 1.66530 |
| Refractive Index | n20/D 1.524(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
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 Methallyl isothiocyanate?
The CAS number of Methallyl isothiocyanate is 41834-90-6.
What are the molecular formula and molecular weight of Methallyl isothiocyanate?
Methallyl isothiocyanate has molecular formula C5H7NS and molecular weight 113.18100 g/mol.
Is Methallyl isothiocyanate hazardous?
Methallyl isothiocyanate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
What are the upstream and downstream products of Methallyl isothiocyanate?
For Methallyl isothiocyanate, Upstream Products: 3-Chloro-2-methyl-1-propene, Sodium thiocyanate, Isobutylene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methallyl isothiocyanate (CAS 41834-90-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46471-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.