1387641-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1387641-89-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,7,6,4 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1387641-89:
(9*1)+(8*3)+(7*8)+(6*7)+(5*6)+(4*4)+(3*1)+(2*8)+(1*9)=205
205 % 10 = 5
So 1387641-89-5 is a valid CAS Registry Number.