856057-74-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856057-74-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,0,5 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 856057-74:
(8*8)+(7*5)+(6*6)+(5*0)+(4*5)+(3*7)+(2*7)+(1*4)=194
194 % 10 = 4
So 856057-74-4 is a valid CAS Registry Number.