138643-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138643-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,4 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138643-95:
(8*1)+(7*3)+(6*8)+(5*6)+(4*4)+(3*3)+(2*9)+(1*5)=155
155 % 10 = 5
So 138643-95-5 is a valid CAS Registry Number.
138643-95-5Relevant articles and documents
Endothiopeptide inhibitors of HIV-1 protease
Yao, Shao,Zutshi, Reena,Chmielewski, Jean
, p. 699 - 704 (1998)
Endothiopeptide inhibitors of HIV-1 protease were synthesized by chemical and enzymatic methods to individually replace each backbone amide bond in 1 with a thioamide-linkage. Interestingly, agent 7, which contains a thioamide-linkage between the P2