Thiourea dioxide
Also known as: Formamidinesulfinic acid, Aminoiminomethanesulfinic acid, Aminoiminomethanesulphinic acid, Formamidine sulfinate, Thiourea S,S-dioxide, Amidinosulfinic acid, Aminoiminomethanesulfinic acid for synthesis
Thiourea dioxide (CAS 1758-73-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula CH4N2O2S and a molecular weight of 108.120 g/mol. Key properties include a melting point of 124-127 °C (dec.)(lit.), a boiling point of 355.3±25.0 °C at 760 mmHg, a density of 2.3±0.1 g/cm3 and a flash point of 168.7±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H251, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1758-73-2
- Jingsj CID
- J-32547-3
- Molecular Formula
- CH4N2O2S
- Molecular Weight
- 108.120 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 124-127 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 355.3±25.0 °C at 760 mmHg |
| Density | 2.3±0.1 g/cm3 |
| Flash Point | 168.7±23.2 °C |
| Exact Mass | 107.999344 |
| PSA | 106.38000 |
| LogP | -2.59 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.805 |
| Additional Property | 30 g/L (20 ºC) |
GHS Safety & Compliance
- H251
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- 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 Thiourea dioxide?
The CAS number of Thiourea dioxide is 1758-73-2.
What are the molecular formula and molecular weight of Thiourea dioxide?
Thiourea dioxide has molecular formula CH4N2O2S and molecular weight 108.120 g/mol.
Is Thiourea dioxide hazardous?
Thiourea dioxide has GHS signal word Danger and hazard statements H251; H302 — Harmful if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of Thiourea dioxide?
For Thiourea dioxide, Upstream Products: Formamidine disulfide dihydrochloride, acetic acid, Methanol; Downstream Products: Guanidinoacetic acid, 5-Methoxy-1H-benzimidazole, 5-Chloro-1H-benzimidazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiourea dioxide (CAS 1758-73-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32547-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.