881443-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 881443-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,1,4,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 881443-57:
(8*8)+(7*8)+(6*1)+(5*4)+(4*4)+(3*3)+(2*5)+(1*7)=188
188 % 10 = 8
So 881443-57-8 is a valid CAS Registry Number.