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4-Phenylsemicarbazide

Also known as: 1-amino-3-phenylurea, 4-phenylsemicarbazide, N-phenylhydrazinecarboxamide, Hydrazinecarboxamide, N-phenyl-, anilinoformyl hydrazine, EINECS 208-669-2, MFCD00007590

4-Phenylsemicarbazide (CAS 537-47-3) 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 122-125 °C(lit.) and a density of 1.275 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
537-47-3
Jingsj CID
J-15928-4
Molecular Formula
C7H9N3O
Molecular Weight
151.16600 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point122-125 °C(lit.)
Density1.275 g/cm3
Exact Mass151.07500
PSA67.15000
LogP1.84600

Customs & Trade Information

HS Code2928000090
Summary2928000090 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 4-Phenylsemicarbazide?

The CAS number of 4-Phenylsemicarbazide is 537-47-3.

What are the molecular formula and molecular weight of 4-Phenylsemicarbazide?

4-Phenylsemicarbazide has molecular formula C7H9N3O and molecular weight 151.16600 g/mol.

What are the upstream and downstream products of 4-Phenylsemicarbazide?

For 4-Phenylsemicarbazide, Upstream Products: Methyl N-phenylcarbamate, Phenylurethane, Phenylurea; Downstream Products: 2,4-Dihydro-4-phenyl-3H-1,2,4-triazol-3-one, 5-Methyl-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one, 1-Formyl-4-phenylsemicarbazide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-Phenylsemicarbazide (CAS 537-47-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15928-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.