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1218927-41-3

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1218927-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1218927-41-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,8,9,2 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1218927-41:
(9*1)+(8*2)+(7*1)+(6*8)+(5*9)+(4*2)+(3*7)+(2*4)+(1*1)=163
163 % 10 = 3
So 1218927-41-3 is a valid CAS Registry Number.

1218927-41-3Downstream Products

1218927-41-3Relevant articles and documents

New and simple synthesis of acid azides, ureas and carbamates from carboxylic acids: Application of peptide coupling agents EDC and HBTU

Sureshbabu, Vommina V.,Lalithamba,Narendra,Hemantha

experimental part, p. 835 - 840 (2010/06/20)

Conversion of carboxylic acids into acid azides using peptide coupling agents, EDC and HBTU is described. The procedure is efficient, practical and applicable to a diverse range of carboxylic acids including N-protected amino acids. Using the same reagents, one-pot synthesis of ureas, dipeptidyl urea esters and carbamates from acids has also been achieved. The Royal Society of Chemistry 2010.

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