124778-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124778-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,7,7 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 124778-27:
(8*1)+(7*2)+(6*4)+(5*7)+(4*7)+(3*8)+(2*2)+(1*7)=144
144 % 10 = 4
So 124778-27-4 is a valid CAS Registry Number.
124778-27-4Relevant articles and documents
Amino Acid Esters as Chiral Auxiliaries in Barbier-Type Reactions in Aqueous Solution
Waldmann, Herbert
, p. 1317 - 1322 (2007/10/02)
Valine and proline benzyl ester are converted into the aliphatic and aromatic α-oxo amides 5 by activation of the respective α-oxo acid by means of N,N'-diisopropylcarbodiimide.The α-oxo amides 5 undergo Barbier-type reactions with differently substituted