156425-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156425-22-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,2 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 156425-22:
(8*1)+(7*5)+(6*6)+(5*4)+(4*2)+(3*5)+(2*2)+(1*2)=128
128 % 10 = 8
So 156425-22-8 is a valid CAS Registry Number.