1240-72-8 Usage
Chemical structure
1,3-bis(2,5-dimethoxyphenyl)urea
Type of compound
Urea derivative
Functional groups
Two 2,5-dimethoxyphenyl groups attached to the central urea nitrogen atom
Solubility
Soluble in a wide range of organic solvents
Stability
High stability
Reactivity
Low reactivity
Applications
a. Polar aprotic solvent in organic reactions
b. Reagent and catalyst in various chemical reactions
c. Peptide coupling
d. Synthesis of organic compounds
e. Potential as a novel electrolyte additive in high-performance lithium-ion batteries
Check Digit Verification of cas no
The CAS Registry Mumber 1240-72-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,4 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1240-72:
(6*1)+(5*2)+(4*4)+(3*0)+(2*7)+(1*2)=48
48 % 10 = 8
So 1240-72-8 is a valid CAS Registry Number.
1240-72-8Relevant academic research and scientific papers
A simple and efficient synthesis of diaryl ureas with reduction of the intermediate isocyanate by triethylamine
Zhou, Shuguang,Yao, Ting,Yi, Jicheng,Li, Dashuai,Xiong, Jing
, p. 315 - 319 (2013/07/27)
Thirty symmetrical diaryl urea derivatives were synthesised in moderate to excellent yields from arylamine and triphosgene with triethylamine as a reducing agent for the intermediate, isocyanate. It was significant that part of the products could be collected in almost quantitative yield without column chromatography. The procedure under mild reaction conditions was tolerant of a wide range of functional groups. The structures of the compounds were determined by NMR, MS and X-ray crystallographic analyses.
