103383-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103383-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,8 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103383-79:
(8*1)+(7*0)+(6*3)+(5*3)+(4*8)+(3*3)+(2*7)+(1*9)=105
105 % 10 = 5
So 103383-79-5 is a valid CAS Registry Number.
103383-79-5Relevant 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