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1,1,3,3-Tetrabutylurea

Also known as: Tetrabutylurea, 1,1,3,3-tetrabutyl-urea, N,N,N',N'-Tetrabutylurea, Tetra-n-butylurea, TBU

1,1,3,3-Tetrabutylurea (CAS 4559-86-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H36N2O and a molecular weight of 284.480 g/mol. Key properties include a melting point of <-50ºC, a boiling point of 379.8±11.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 132.0±11.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
4559-86-8
Jingsj CID
J-1096276-2
Molecular Formula
C17H36N2O
Molecular Weight
284.480 g/mol
Category
Organic Compounds
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<-50ºC
Boiling Point379.8±11.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point132.0±11.6 °C
Exact Mass284.282776
PSA23.55000
LogP6.57
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.463

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. 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 1,1,3,3-Tetrabutylurea?

The CAS number of 1,1,3,3-Tetrabutylurea is 4559-86-8.

What are the molecular formula and molecular weight of 1,1,3,3-Tetrabutylurea?

1,1,3,3-Tetrabutylurea has molecular formula C17H36N2O and molecular weight 284.480 g/mol.

What are the upstream and downstream products of 1,1,3,3-Tetrabutylurea?

For 1,1,3,3-Tetrabutylurea, Upstream Products: Dibutylamine, Carbon dioxide, Sodium trichloroacetate.

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

Last updated:

How to cite: Jingsj. "1,1,3,3-Tetrabutylurea (CAS 4559-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1096276-2 (accessed 2026-11-09).

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