188834-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188834-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,8,3 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 188834-57:
(8*1)+(7*8)+(6*8)+(5*8)+(4*3)+(3*4)+(2*5)+(1*7)=193
193 % 10 = 3
So 188834-57-3 is a valid CAS Registry Number.