66910-38-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66910-38-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,1 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66910-38:
(7*6)+(6*6)+(5*9)+(4*1)+(3*0)+(2*3)+(1*8)=141
141 % 10 = 1
So 66910-38-1 is a valid CAS Registry Number.