186422-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186422-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,4,2 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 186422-57:
(8*1)+(7*8)+(6*6)+(5*4)+(4*2)+(3*2)+(2*5)+(1*7)=151
151 % 10 = 1
So 186422-57-1 is a valid CAS Registry Number.