Phenylthiourea
Also known as: 1-Phenyl-2-thiourea, 1-Phenylthiourea, N-Phenylthiourea, Phenylthiocarbamide, PTU, PTC, alpha-Phenylthiourea, Fenylthiomocovina
Phenylthiourea (CAS 103-85-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H8N2S and a molecular weight of 152.217 g/mol. Key properties include a melting point of 145-150 °C(lit.), a boiling point of 266.7±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 115.1±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H300 and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 103-85-5
- Jingsj CID
- J-3607-6
- Molecular Formula
- C7H8N2S
- Molecular Weight
- 152.217 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 145-150 °C(lit.) |
|---|---|
| Boiling Point | 266.7±23.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 115.1±22.6 °C |
| Exact Mass | 152.040817 |
| PSA | 70.14000 |
| LogP | 0.73 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.725 |
GHS Safety & Compliance
- H300
- H317 — May cause an allergic skin reaction
Activity & Biological Data
| Target | phenoloxidase[1] |
|---|---|
| Additional Information | [1]. Ryazanova AD, et al. The phenylthiourea is a competitive inhibitor of the enzymatic oxidation of DOPA by phenoloxidase. J Enzyme Inhib Med Chem. 2012 Feb;27(1):78-83. |
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 Phenylthiourea?
The CAS number of Phenylthiourea is 103-85-5.
What are the molecular formula and molecular weight of Phenylthiourea?
Phenylthiourea has molecular formula C7H8N2S and molecular weight 152.217 g/mol.
Is Phenylthiourea hazardous?
Phenylthiourea has GHS signal word Danger and hazard statements H300; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Phenylthiourea?
For Phenylthiourea, Upstream Products: Phenyl isothiocyanate, Iodobenzene, 1-Benzoyl-3-phenyl-2-thiourea; Downstream Products: 2-Hydrazinobenzothiazole, 1-Benzoyl-3-phenyl-2-thiourea, hexaethyl disilazane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phenylthiourea (CAS 103-85-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3607-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.