345666-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 345666-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,5,6,6 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 345666-57:
(8*3)+(7*4)+(6*5)+(5*6)+(4*6)+(3*6)+(2*5)+(1*7)=171
171 % 10 = 1
So 345666-57-1 is a valid CAS Registry Number.