209971-48-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209971-48-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,7 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 209971-48:
(8*2)+(7*0)+(6*9)+(5*9)+(4*7)+(3*1)+(2*4)+(1*8)=162
162 % 10 = 2
So 209971-48-2 is a valid CAS Registry Number.