211805-88-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211805-88-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,8,0 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 211805-88:
(8*2)+(7*1)+(6*1)+(5*8)+(4*0)+(3*5)+(2*8)+(1*8)=108
108 % 10 = 8
So 211805-88-8 is a valid CAS Registry Number.