850655-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 850655-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,6,5 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 850655-21:
(8*8)+(7*5)+(6*0)+(5*6)+(4*5)+(3*5)+(2*2)+(1*1)=169
169 % 10 = 9
So 850655-21-9 is a valid CAS Registry Number.