iodomethane
Also known as: methyl iodide, METHYL IODIDE, Iodomethane, IODOMETHANE, CH3I, Methane, iodo-, iodo-methane, iodo-methan, iodomethane, methane iodide, methyl iodine, methyliodide, Methyliodide, Jodmethan, Iodmethan, Iodometano, Halon 10001, EINECS 200-819-5, MFCD00001073
iodomethane (CAS 74-88-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula CH3I and a molecular weight of 141.939 g/mol. Key properties include a melting point of −64(lit.), a boiling point of 40.3±3.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 7.8±10.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 74-88-4
- Jingsj CID
- J-1308098-9
- Molecular Formula
- CH3I
- Molecular Weight
- 141.939 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −64(lit.) |
|---|---|
| Boiling Point | 40.3±3.0 °C at 760 mmHg |
| Density | 2.2±0.1 g/cm3 |
| Flash Point | 7.8±10.7 °C |
| Exact Mass | 141.927933 |
| LogP | 1.50 |
| Additional Property | 4.89 (vs air) |
| Vapor Pressure | 437.1±0.1 mmHg at 25°C |
| Refractive Index | 1.528 |
| Additional Property | 14 g/L (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H331 — Toxic if inhaled
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
Customs & Trade Information
| HS Code | 2903399030 |
|---|---|
| Summary | 2903399030 iodomethane。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:13.0%。MFN tarrif:5.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of iodomethane?
The CAS number of iodomethane is 74-88-4.
What are the molecular formula and molecular weight of iodomethane?
iodomethane has molecular formula CH3I and molecular weight 141.939 g/mol.
Is iodomethane hazardous?
iodomethane has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of iodomethane?
For iodomethane, Upstream Products: Chlorotrimethylsilane, Trimethyl phosphonoacetate, Benzaldehyde dimethyl acetal; Downstream Products: Methyl 1-methyl-1,2,3-triazole-5-carboxylate, Methyl 2-methyl-2H-1,2,3-triazole-4-carboxylate, Methyl 1-methyl-1H-1,2,3-triazole-4-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "iodomethane (CAS 74-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308098-9 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.