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N-phenyl-N'-(2-phenyl-butyryl)-urea is an organic compound with the molecular formula C17H18N2O2. It is a derivative of urea, featuring a phenyl group attached to the nitrogen atom and a 2-phenyl-butyryl group attached to the other nitrogen atom. N-phenyl-N'-(2-phenyl-butyryl)-urea is characterized by its white crystalline appearance and is soluble in organic solvents. It is synthesized through a condensation reaction between phenyl isocyanate and 2-phenyl-butyric acid. The compound has potential applications in the pharmaceutical industry, particularly as a precursor in the synthesis of certain drugs. Its chemical structure and properties make it a versatile building block for the development of new therapeutic agents.

4287-43-8

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4287-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4287-43-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4287-43:
(6*4)+(5*2)+(4*8)+(3*7)+(2*4)+(1*3)=98
98 % 10 = 8
So 4287-43-8 is a valid CAS Registry Number.

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