molecular iodine
Also known as: Diatomic iodine, EINECS 231-442-4, Eranol, IODUM, Iode, Iodine, Iodine (JP15/USP), Iodine [JAN], Iodine(Resublimed)ExtraPure, Iodine, 0.1 N standard solution, Iodine, 99+%, Iodine, for analysis ACS, 99.8+%, Iodine,Resublimed,99.5%, IodineFlakes,99.998%, Iodinespheres,ultradry,-60mesh,99.999%(metalsbasis), Iodio, Jod, Jood, LUGOL, MFCD00011355
molecular iodine (CAS 7553-56-2) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula I2 and a molecular weight of 253.809 g/mol. Key properties include a melting point of 113 °C(lit.), a boiling point of 184.4±9.0 °C at 760 mmHg, a density of 3.8±0.1 g/cm3 and a flash point of <10 °C. It is classified under GHS with signal word Danger and hazard statements H312 — Harmful in contact with skin, H332 — Harmful if inhaled and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 7553-56-2
- Jingsj CID
- J-36044-7
- Molecular Formula
- I2
- Molecular Weight
- 253.809 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 113 °C(lit.) |
|---|---|
| Boiling Point | 184.4±9.0 °C at 760 mmHg |
| Density | 3.8±0.1 g/cm3 |
| Flash Point | <10 °C |
| Exact Mass | 253.808914 |
| LogP | 3.16 |
| Additional Property | 9 (vs air) |
| Vapor Pressure | 0.5±0.4 mmHg at 25°C |
| Refractive Index | 1.788 |
| Additional Property | 0.3 g/L (20 ºC) |
GHS Safety & Compliance
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H372 — Causes damage to organs through prolonged exposure
- H400 — Very toxic to aquatic life
Customs & Trade Information
| HS Code | 2801200000 |
|---|
Frequently Asked Questions
What is the CAS number of molecular iodine?
The CAS number of molecular iodine is 7553-56-2.
What are the molecular formula and molecular weight of molecular iodine?
molecular iodine has molecular formula I2 and molecular weight 253.809 g/mol.
Is molecular iodine hazardous?
molecular iodine has GHS signal word Danger and hazard statements H312 — Harmful in contact with skin; H332 — Harmful if inhaled; H315 — Causes skin irritation.
What are the upstream and downstream products of molecular iodine?
For molecular iodine, Upstream Products: Sodium iodide, iodomethane, Sodium chlorite; Downstream Products: 2,3,4-Trimethyl-2-pentene, 2,3-DIMETHYL-2-PENTENE, 4-Chlorobenzotrichloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "molecular iodine (CAS 7553-56-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36044-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.