1121635-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1121635-77-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,1,6,3 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1121635-77:
(9*1)+(8*1)+(7*2)+(6*1)+(5*6)+(4*3)+(3*5)+(2*7)+(1*7)=115
115 % 10 = 5
So 1121635-77-5 is a valid CAS Registry Number.