154391-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154391-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,3,9 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 154391-22:
(8*1)+(7*5)+(6*4)+(5*3)+(4*9)+(3*1)+(2*2)+(1*2)=127
127 % 10 = 7
So 154391-22-7 is a valid CAS Registry Number.