211621-52-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211621-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,6,2 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 211621-52:
(8*2)+(7*1)+(6*1)+(5*6)+(4*2)+(3*1)+(2*5)+(1*2)=82
82 % 10 = 2
So 211621-52-2 is a valid CAS Registry Number.