210920-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210920-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,9,2 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 210920-44:
(8*2)+(7*1)+(6*0)+(5*9)+(4*2)+(3*0)+(2*4)+(1*4)=88
88 % 10 = 8
So 210920-44-8 is a valid CAS Registry Number.