859783-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859783-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,7,8 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 859783-42:
(8*8)+(7*5)+(6*9)+(5*7)+(4*8)+(3*3)+(2*4)+(1*2)=239
239 % 10 = 9
So 859783-42-9 is a valid CAS Registry Number.