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148931-03-7

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148931-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148931-03-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,9,3 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 148931-03:
(8*1)+(7*4)+(6*8)+(5*9)+(4*3)+(3*1)+(2*0)+(1*3)=147
147 % 10 = 7
So 148931-03-7 is a valid CAS Registry Number.

148931-03-7Relevant articles and documents

NEW SYNTHESIS OF N-ACYLUREA DERIVATIVES

Kutschy, Peter,Dzurilla, Milan,Ficeri, Vlastimir,Koscik, Dusan

, p. 575 - 587 (2007/10/02)

S-Allyl N-acylmonothiocarbamates react in boiling benzene with primary and secondary amines in the presence of catalytic amounts of triethylamine.In this reaction, the S-allyl group is replaced with the amino group under formation of N-acylurea derivatives in 45-90percent yields.The wide applicability of the reaction is demonstrated by the synthesis of eighty four N-acyl-N'-substituted and N-acyl-N',N'-disubstituted ureas with various aliphatic, aromatic and heterocyclic substituents.

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