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587-90-6 Usage


1,3-BIS(4-NITROPHENYL)UREA, also known as nicarbazin, is a chemical compound that is characterized as a yellow solid. It is primarily recognized for its role as an active component in the antifertility agent used in the poultry industry, specifically in chicken, duck, and goose plasma.


Used in Poultry Industry:
1,3-BIS(4-NITROPHENYL)UREA is used as an active component in the antifertility agent nicarbazin for the purpose of controlling the reproductive capabilities of chickens, ducks, and geese. This application helps in managing the population and ensuring the focus remains on the growth and health of the birds intended for consumption.
The chemical properties of 1,3-BIS(4-NITROPHENYL)UREA, such as its yellow solid state, contribute to its effectiveness in this application, allowing for easy identification and handling within the industry.

Purification Methods

Crystallise the urea from EtOH (m 364o, long heating), EtOH/Me2CO (m 301-303o, 300-304o dec, 318-319o) or Me2CO (m 289o dec). It sublimes in vacuo.[Beilstein 12 H 723, 12 II 393, 12 III 1619, 12 IV 1646.]

Check Digit Verification of cas no

The CAS Registry Mumber 587-90-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,8 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 587-90:
96 % 10 = 6
So 587-90-6 is a valid CAS Registry Number.

587-90-6 Well-known Company Product Price

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  • Aldrich

  • (390151)  1,3-Bis(4-nitrophenyl)urea  97%

  • 587-90-6

  • 390151-5G

  • 804.96CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name 1,3-BIS(4-NITROPHENYL)UREA

1.2 Other means of identification

Product number -
Other names bis-N,N'-(4-nitrophenyl)urea

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:587-90-6 SDS

587-90-6Relevant articles and documents

Nature of urea-fluoride interaction: Incipient and definitive proton transfer

Boiocchi, Massimo,Del Boca, Laura,Gomez, David Esteban,Fabbrizzi, Luigi,Licchelli, Maurizio,Monzani, Enrico

, p. 16507 - 16514 (2004)

1,3-bis(4-nitrophenyl)urea (1) interacts through hydrogen bonding with a variety of oxoanions in an MeCN solution to give bright yellow 1:1 complexes, whose stability decreases with the decreasing basicity of the anion (CH 3COO- > C6H5COO- > H2PO4- > NO2- > HSO4- > NO3-). The [Bu 4N][1·CH3COO] complex salt has been isolated as a crystalline solid and its molecular structure determined, showing the formation of a discrete adduct held together by two N-H...O hydrogen bonds of moderate strength. On the other hand, the F- ion first establishes a hydrogen-bonding interaction with 1 to give the most stable 1:1 complex, and then on addition of a second equivalent, induces urea deprotonation, due to the formation of HF2-. The orange-red deprotonated urea solution uptakes carbon dioxide from air to give the tetrabutylammonium salt of the hydrogencarbonate H-bond complex, [Bu4N][1·HCO 3], whose crystal and molecular structures have been determined.

Preparation method of symmetric urea compound


Paragraph 0036-0040, (2020/05/30)

The invention discloses a preparation method of a symmetric urea compound, which comprises the following steps: by using a hydroxamic acid compound as a raw material, sequentially adding an alkali anda solvent, reacting at 25-50 DEG C for 1-7 hours in an SO2F2 atmosphere, and carrying out aftertreatment on the reaction solution to obtain the symmetric urea compound. According to the invention, cheap, easily available and environment-friendly SO2F2 is used as an accelerant to efficiently promote the generation of an isocyanate intermediate to form a C-N bond. The generation of isocyanate avoids the use of a large amount of halogen or azide dangerous reagents, so that the compound can be used as a green substitute for standard treatment conditions in Curtius rearrangement and Hofmann rearrangement reactions. The amine source in the final product only comes from hydroxylamine, and no additional amine needs to be added, so that the substrate is wide in applicability, and the correspondingsymmetric urea compound can be obtained at a relatively good yield. The operation process is simple, the aftertreatment only needs filtering, and the method is suitable for large-scale preparation.

Zinc Powder Catalysed Formylation and Urealation of Amines Using CO2 as a C1 Building Block?

Du, Chongyang,Chen, Yaofeng

, p. 1057 - 1064 (2020/06/30)

Transformation of CO2 into valuable organic compounds catalysed by cheap and biocompatible metal catalysts is one of important topics of current organic synthesis and catalysis. Herein, we report the zinc powder catalysed formylation and urealation of amines with CO2 and (EtO)3SiH under solvent free condition. Using 2 molpercent zinc powder as the catalyst, a series of secondary amines, both the aromatic ones and the aliphatic ones, can be formylated into formamides. When primary aromatic amines were used as the substrates, the reactions produce urea derivatives. The electronic and steric effects from the substrates on the formylation and urealation reactions were observed and discussed. The recovery and reusability of zinc powder were investigated, showing the zinc powder can be reused in the formylation reaction without loss of catalytic activity. The analysis on the reactants/products mixture after filtering out the zinc powder showed the zinc concentration in the mixture is low to 1 ppm. The pathways for the formylation and urealation of amines with this catalytic system were also investigated, and related to the different substrates.

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