69928-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69928-38-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,2 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69928-38:
(7*6)+(6*9)+(5*9)+(4*2)+(3*8)+(2*3)+(1*8)=187
187 % 10 = 7
So 69928-38-7 is a valid CAS Registry Number.