21519-50-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21519-50-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,1 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21519-50:
(7*2)+(6*1)+(5*5)+(4*1)+(3*9)+(2*5)+(1*0)=86
86 % 10 = 6
So 21519-50-6 is a valid CAS Registry Number.