756839-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 756839-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,6,8,3 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 756839-77:
(8*7)+(7*5)+(6*6)+(5*8)+(4*3)+(3*9)+(2*7)+(1*7)=227
227 % 10 = 7
So 756839-77-7 is a valid CAS Registry Number.