758724-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 758724-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,8,7,2 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 758724-21:
(8*7)+(7*5)+(6*8)+(5*7)+(4*2)+(3*4)+(2*2)+(1*1)=199
199 % 10 = 9
So 758724-21-9 is a valid CAS Registry Number.