919785-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 919785-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,9,7,8 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 919785-09:
(8*9)+(7*1)+(6*9)+(5*7)+(4*8)+(3*5)+(2*0)+(1*9)=224
224 % 10 = 4
So 919785-09-4 is a valid CAS Registry Number.