939968-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 939968-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,9,9,6 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 939968-15:
(8*9)+(7*3)+(6*9)+(5*9)+(4*6)+(3*8)+(2*1)+(1*5)=247
247 % 10 = 7
So 939968-15-7 is a valid CAS Registry Number.