N,N'-Diethyl-N,N'-diphenylurea

Also known as: 1,3-Diethyl-1,3-diphenylurea, Centralite I, Centralite, Carbamite, Ethyl centralite, N,N'-Diethylcarbanilide, s-Diethyldiphenylurea, Bis(N-ethyl-N-phenyl)urea, diethyldiphenylcarbamide

N,N'-Diethyl-N,N'-diphenylurea (CAS 85-98-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C17H20N2O and a molecular weight of 268.35300 g/mol. Key properties include a melting point of 73-75 °C(lit.), a boiling point of 325 - 330ºC, a density of 1.118 g/cm3 and a flash point of 325 - 330ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 85-98-3
Jingsj CID: J-943782-3
Molecular Formula: C₁₇H₂₀N₂O
Molecular Weight: 268.35300 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	73-75 °C(lit.)
Boiling Point	325 - 330ºC
Density	1.118 g/cm3
Flash Point	325 - 330ºC
Exact Mass	268.15800
PSA	23.55000
LogP	4.15940
Additional Property	9.3 (vs air)
Refractive Index	1.591

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H412 — Harmful to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of N,N'-Diethyl-N,N'-diphenylurea?

The CAS number of N,N'-Diethyl-N,N'-diphenylurea is 85-98-3.

What are the molecular formula and molecular weight of N,N'-Diethyl-N,N'-diphenylurea?

N,N'-Diethyl-N,N'-diphenylurea has molecular formula C17H20N2O and molecular weight 268.35300 g/mol.

Is N,N'-Diethyl-N,N'-diphenylurea hazardous?

N,N'-Diethyl-N,N'-diphenylurea has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H412 — Harmful to aquatic life with long lasting effects.

What are the upstream and downstream products of N,N'-Diethyl-N,N'-diphenylurea?

For N,N'-Diethyl-N,N'-diphenylurea, Upstream Products: Diethyl sulfate, 1,3-Diphenylurea, N-Ethylaniline.

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

Last updated: 8/21/2026

How to cite: Jingsj. "N,N'-Diethyl-N,N'-diphenylurea (CAS 85-98-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-943782-3 (accessed 2026-11-06).

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