149720-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149720-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,7,2 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 149720-54:
(8*1)+(7*4)+(6*9)+(5*7)+(4*2)+(3*0)+(2*5)+(1*4)=147
147 % 10 = 7
So 149720-54-7 is a valid CAS Registry Number.