219606-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219606-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,0 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 219606-56:
(8*2)+(7*1)+(6*9)+(5*6)+(4*0)+(3*6)+(2*5)+(1*6)=141
141 % 10 = 1
So 219606-56-1 is a valid CAS Registry Number.