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4-Phenylurazole

Also known as: 4-Phenyl-1,2,4-triazolidine-3,5-dione, 4-Phenyl-1,2,4-triazolane-3,5-dione, 1,2,4-Triazolidine-3,5-dione, 4-phenyl-, 4-Phenyltetrahydro-1,2,4-triazole-3,5-dione, AURORA KA-3647, EINECS 240-127-0, MFCD00005226

4-Phenylurazole (CAS 15988-11-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H7N3O2 and a molecular weight of 177.16000 g/mol. Key properties include a melting point of 207-209 °C(lit.) and a density of 1.373 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15988-11-1
Jingsj CID
J-45405-8
Molecular Formula
C8H7N3O2
Molecular Weight
177.16000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point207-209 °C(lit.)
Density1.373 g/cm3
Exact Mass177.05400
PSA70.65000
Refractive Index1.6

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 4-Phenylurazole?

The CAS number of 4-Phenylurazole is 15988-11-1.

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

4-Phenylurazole has molecular formula C8H7N3O2 and molecular weight 177.16000 g/mol.

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

For 4-Phenylurazole, Upstream Products: Semicarbazide hydrochloride, Ethyl 3-(N-phenylcarbamoyl)carbazate, 4-Phenyl-1,2,4-triazoline-3,5-dione; Downstream Products: 4-Phenyl-1,2,4-triazoline-3,5-dione, pre-Calcitriol PTAD Adduct, Methyl N-phenylcarbamate.

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-Phenylurazole (CAS 15988-11-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45405-8 (accessed 2026-11-06).

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