139568-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139568-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,6 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139568-77:
(8*1)+(7*3)+(6*9)+(5*5)+(4*6)+(3*8)+(2*7)+(1*7)=177
177 % 10 = 7
So 139568-77-7 is a valid CAS Registry Number.