1-Phenylsemicarbazide
Also known as: 1-Carbamoyl-2-phenylhydrazine, Cryogenine, Kryogenin, N-Phenylhydrazinecarboxamide, 2-Phenylhydrazinecarboxamide, Hydrazine, 1-carbamoyl-2-phenyl-, Anilinourea, Febrimin, Fenylsemikarbazid
1-Phenylsemicarbazide (CAS 103-03-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H9N3O and a molecular weight of 151.16600 g/mol. Key properties include a melting point of 171-174 °C(lit.) and a density of 1.275g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 103-03-7
- Jingsj CID
- J-1111753-9
- Molecular Formula
- C7H9N3O
- Molecular Weight
- 151.16600 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 171-174 °C(lit.) |
|---|---|
| Density | 1.275g/cm3 |
| Exact Mass | 151.07500 |
| PSA | 67.15000 |
| LogP | 1.84600 |
| Refractive Index | 1.601 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Activity & Biological Data
| Additional Information | [1]. Iwamoto, Hiromichi, et al. Prevention of mold growth on industrial products. XI. Antifungal activities of various fungicides. 5. Organic nitrogen-sulfur compounds. |
|---|
Customs & Trade Information
| HS Code | 2928000090 |
|---|---|
| Summary | 2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-Phenylsemicarbazide?
The CAS number of 1-Phenylsemicarbazide is 103-03-7.
What are the molecular formula and molecular weight of 1-Phenylsemicarbazide?
1-Phenylsemicarbazide has molecular formula C7H9N3O and molecular weight 151.16600 g/mol.
Is 1-Phenylsemicarbazide hazardous?
1-Phenylsemicarbazide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
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-Phenylsemicarbazide (CAS 103-03-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1111753-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.