138892-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138892-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,9 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138892-04:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*2)+(2*0)+(1*4)=163
163 % 10 = 3
So 138892-04-3 is a valid CAS Registry Number.
138892-04-3Relevant articles and documents
Stereoselective synthesis of L-amino acids via Strecker and Ugi reactions on carbohydrate templates
Kunz,Pfrengle,Ruck,Sager
, p. 1039 - 1042 (2007/10/02)
L-Amino acid derivatives are stereoselectively synthesized in high yield using 2,3,4-tri-O-pivaloyl-α-D-arabinopyranosylamine or 2,3,4-tri-O-pivaloyl-β-L-fucopyranosylamine as the chiral auxiliary in Strecker and Ugi reactions.