131719-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131719-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,1 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131719-87:
(8*1)+(7*3)+(6*1)+(5*7)+(4*1)+(3*9)+(2*8)+(1*7)=124
124 % 10 = 4
So 131719-87-4 is a valid CAS Registry Number.
131719-87-4Relevant articles and documents
Rapamycin synthetic studies. 1. Construction of the C(27)-C(42) subunit
Smith III, Amos B.,Condon, Stephen M.,McCauley, John A.,Leahy, James W.,Leazer Jr., Johnnie L.,Maleczka Jr., Robert E.
, p. 4907 - 4910 (2007/10/02)
A convergent synthetic approach to the C(27)-C(42) fragment of the immunosuppressive macrocycle rapamycin is described.