635689-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 635689-45-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,5,6,8 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 635689-45:
(8*6)+(7*3)+(6*5)+(5*6)+(4*8)+(3*9)+(2*4)+(1*5)=201
201 % 10 = 1
So 635689-45-1 is a valid CAS Registry Number.