1,3-Dichloro-5,5-dimethylhydantoin
Also known as: DCDMH, 1,3-Dichloro-5,5-dimethyl-2,4-imidazolidinedione, Dantoin, Halane, Dactin
1,3-Dichloro-5,5-dimethylhydantoin (CAS 118-52-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H6Cl2N2O2 and a molecular weight of 197.019 g/mol. Key properties include a melting point of 132-134 °C(lit.), a boiling point of 214.7±23.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 83.7±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H272, H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 118-52-5
- Jingsj CID
- J-1993026-0
- Molecular Formula
- C5H6Cl2N2O2
- Molecular Weight
- 197.019 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 132-134 °C(lit.) |
|---|---|
| Boiling Point | 214.7±23.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 83.7±22.6 °C |
| Exact Mass | 195.980637 |
| PSA | 40.62000 |
| LogP | 1.36 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.572 |
| Additional Property | 0.21 g/100 mL (25 ºC) |
GHS Safety & Compliance
- H272
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
- H400 — Very toxic to aquatic life
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,3-Dichloro-5,5-dimethylhydantoin?
The CAS number of 1,3-Dichloro-5,5-dimethylhydantoin is 118-52-5.
What are the molecular formula and molecular weight of 1,3-Dichloro-5,5-dimethylhydantoin?
1,3-Dichloro-5,5-dimethylhydantoin has molecular formula C5H6Cl2N2O2 and molecular weight 197.019 g/mol.
Is 1,3-Dichloro-5,5-dimethylhydantoin hazardous?
1,3-Dichloro-5,5-dimethylhydantoin has GHS signal word Danger and hazard statements H272; H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 1,3-Dichloro-5,5-dimethylhydantoin?
For 1,3-Dichloro-5,5-dimethylhydantoin, Upstream Products: 5,5-Dimethylhydantoin; Downstream Products: 2,5-Dimethoxybenzyl chloride, 1-chloro-2-naphthol, 1,3-Dibromo-5,5-dimethylhydantoin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Dichloro-5,5-dimethylhydantoin (CAS 118-52-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993026-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.