5-Iodouracil
Also known as: 2,4(1H,3H)-Pyrimidinedione, 5-iodo-, 2,4-Dihydroxy-5-iodopyrimidine, 5-Iodo-2,4(1H,3H)-pyrimidinedione, 5-Iodo-2,4-dioxopyrimidine, 5-Iodopyrimidine-2,4(1H,3H)-dione, 5-Iodopyrimidine-2,4-diol, 5IU, TIMTEC-BB SBB009920, MFCD00006020, EINECS 211-788-2
5-Iodouracil (CAS 696-07-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3IN2O2 and a molecular weight of 237.983 g/mol. Key properties include a melting point of 274-276 °C (dec.)(lit.), a boiling point of 401ºC and a density of 2.4±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful 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.
- 696-07-1
- Jingsj CID
- J-1081341-8
- Molecular Formula
- C4H3IN2O2
- Molecular Weight
- 237.983 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 274-276 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 401ºC |
| Density | 2.4±0.1 g/cm3 |
| Exact Mass | 237.923904 |
| PSA | 66.24000 |
| LogP | 0.14 |
| Refractive Index | 1.706 |
| Additional Property | SOLUBLE IN COLD WATER |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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 5-Iodouracil?
The CAS number of 5-Iodouracil is 696-07-1.
What are the molecular formula and molecular weight of 5-Iodouracil?
5-Iodouracil has molecular formula C4H3IN2O2 and molecular weight 237.983 g/mol.
Is 5-Iodouracil hazardous?
5-Iodouracil has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 5-Iodouracil?
For 5-Iodouracil, Upstream Products: Uracil, 5-Aminouracil, 2,4-Dimethoxypyrimidine; Downstream Products: idoxuridine, Uracil, Thymine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Iodouracil (CAS 696-07-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1081341-8 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.