156664-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156664-03-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,6 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156664-03:
(8*1)+(7*5)+(6*6)+(5*6)+(4*6)+(3*4)+(2*0)+(1*3)=148
148 % 10 = 8
So 156664-03-8 is a valid CAS Registry Number.