857791-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857791-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,9 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 857791-33:
(8*8)+(7*5)+(6*7)+(5*7)+(4*9)+(3*1)+(2*3)+(1*3)=224
224 % 10 = 4
So 857791-33-4 is a valid CAS Registry Number.