861784-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861784-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,8 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 861784-58:
(8*8)+(7*6)+(6*1)+(5*7)+(4*8)+(3*4)+(2*5)+(1*8)=209
209 % 10 = 9
So 861784-58-9 is a valid CAS Registry Number.