578739-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 578739-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,8,7,3 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 578739-21:
(8*5)+(7*7)+(6*8)+(5*7)+(4*3)+(3*9)+(2*2)+(1*1)=216
216 % 10 = 6
So 578739-21-6 is a valid CAS Registry Number.