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698-90-8 Usage

General Description

Cyclohexylurea is a chemical compound with the molecular formula C7H14N2O. It is derived from urea and cyclohexylamine and is commonly used as an intermediate in the production of pharmaceuticals and agrochemicals. Cyclohexylurea is a white crystalline solid that is sparingly soluble in water and organic solvents. It has a variety of potential uses, including as a stabilizer for nitroxyl radicals and as a catalyst in organic reactions. Additionally, it can be used as a corrosion inhibitor and as a component in some rubber formulations. Overall, the unique properties of cyclohexylurea make it a valuable compound for a range of industrial and scientific applications.

Check Digit Verification of cas no

The CAS Registry Mumber 698-90-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 698-90:
(5*6)+(4*9)+(3*8)+(2*9)+(1*0)=108
108 % 10 = 8
So 698-90-8 is a valid CAS Registry Number.
InChI:InChI=1/C7H14N2O/c8-7(10)9-6-4-2-1-3-5-6/h6H,1-5H2,(H3,8,9,10)

698-90-8 Well-known Company Product Price

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  • TCI America

  • (C2034)  Cyclohexylurea  >98.0%(N)

  • 698-90-8

  • 25g

  • 520.00CNY

  • Detail
  • Alfa Aesar

  • (B24915)  Cyclohexylurea, 98%   

  • 698-90-8

  • 25g

  • 396.0CNY

  • Detail
  • Alfa Aesar

  • (B24915)  Cyclohexylurea, 98%   

  • 698-90-8

  • 100g

  • 1241.0CNY

  • Detail
  • Alfa Aesar

  • (B24915)  Cyclohexylurea, 98%   

  • 698-90-8

  • 500g

  • 5565.0CNY

  • Detail

698-90-8SDS

SAFETY DATA SHEETS

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.Identification

1.1 GHS Product identifier

Product name Cyclohexylurea

1.2 Other means of identification

Product number -
Other names monocyclohexylurea

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:698-90-8 SDS

698-90-8Relevant articles and documents

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Alt,Weis

, p. 812 (1969)

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An efficient one-pot synthesis of industrially valuable primary organic carbamates and: N -substituted ureas by a reusable Merrifield anchored iron(ii)-anthra catalyst [FeII(Anthra-Merf)] using urea as a sustainable carbonylation source

Basu, Priyanka,Dey, Tusar Kanto,Ghosh, Aniruddha,Biswas, Surajit,Khan, Aslam,Islam, Sk. Manirul

, p. 2630 - 2643 (2020/02/20)

An efficient synthesis of primary carbamates and N-substituted ureas is explored with a newly developed heterogeneous polymer supported iron catalyst in the presence of a sustainable carbonylation source. The Merrifield anchored iron(ii)-anthra catalyst [FeII(Anthra-Merf)] was synthesized by functionalization of Merrifield polymer followed by grafting of iron metal. The catalyst [FeII(Anthra-Merf)] was characterized by several techniques, like SEM, EDAX, TGA, PXRD, XPS, FTIR, CHN, AAS and UV-Vis analysis. The designed polymer embedded [FeII(Anthra-Merf)] complex is a remarkably successful catalyst for the synthesis of primary organic carbamates and N-substituted ureas by using safe carbonylation agent urea with different derivatives of alcohols and amines, respectively. The reported catalyst is a potential candidate towards contributing a satisfactory yield of isolated products under suitable reaction conditions. The catalyst is recyclable and almost non-leaching in nature after six runs with an insignificant drop in catalytic activity. Thus we found an economical and viable catalyst [FeII(Anthra-Merf)] for primary carbamates and N-substituted urea synthesis under moderate reaction conditions.

Catalytic hydration of cyanamides with phosphinous acid-based ruthenium(ii) and osmium(ii) complexes: scope and mechanistic insights

álvarez, Daniel,Cadierno, Victorio,Crochet, Pascale,González-Fernández, Rebeca,López, Ramón,Menéndez, M. Isabel

, p. 4084 - 4098 (2020/07/09)

The synthesis of a large variety of ureas R1R2NC(O)NH2 (R1 and R2 = alkyl, aryl or H; 26 examples) was successfully accomplished by hydration of the corresponding cyanamides R1R2NCN using the phosphinous acid-based complexes [MCl2(η6-p-cymene)(PMe2OH)] (M = Ru (1), Os (2)) as catalysts. The reactions proceeded cleanly under mild conditions (40-70 °C), in the absence of any additive, employing low metal loadings (1 molpercent) and water as the sole solvent. In almost all the cases, the osmium complex 2 featured a superior reactivity in comparison to that of its ruthenium counterpart 1. In addition, for both catalysts, the reaction rates observed for the hydration of the cyanamide substrates were remarkably faster than those involving classical aliphatic and aromatic nitriles. Computational studies allowed us to rationalize all these trends. Thus, the calculations indicated that the presence of a nitrogen atom directly linked to the CN bond depopulates electronically the nitrile carbon by inductive effect when coordinated to the metal center, thus favouring the intramolecular nucleophilic attack of the OH group of the phosphinous acid ligand to this carbon. On the other hand, the higher reactivity of Os vs. Ru seems to be related with the lower ring strain on the incipient metallacycle that starts to form in the transition state associated with this key step in the catalytic cycle. Indirect experimental evidence of the generation of the metallacyclic intermediates was obtained by studying the reactivity of [RuCl2(η6-p-cymene)(PMe2OH)] (1) towards dimethylcyanamide in methanol and ethanol. The reactions afforded compounds [RuCl(η6-p-cymene)(PMe2OR)(NCNMe2)][SbF6] (R = Me (5a), Et (5b)), resulting from the alcoholysis of the metallacycle, which could be characterized by single-crystal X-ray diffraction. This journal is

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