138892-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138892-26-9 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, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138892-26:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*2)+(2*2)+(1*6)=169
169 % 10 = 9
So 138892-26-9 is a valid CAS Registry Number.
138892-26-9Relevant articles and documents
Enantioselective synthesis of 2,3-diamino acids by the bislactim ether method
Hartwig,Mittendorf
, p. 939 - 941 (2007/10/02)
A method is described for the asymmetric synthesis of both enantiomers of 2-alkyl-substituted 2,3-diaminopropionic acids with different protecting groups using the Schollkopf-Hartwig bislactim ether method, starting from 2-alkyl-2,5-dihydro-5-isopropyl-3,
