669748-75-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 669748-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,7,4 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 669748-75:
(8*6)+(7*6)+(6*9)+(5*7)+(4*4)+(3*8)+(2*7)+(1*5)=238
238 % 10 = 8
So 669748-75-8 is a valid CAS Registry Number.