56905-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56905-72-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,0 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56905-72:
(7*5)+(6*6)+(5*9)+(4*0)+(3*5)+(2*7)+(1*2)=147
147 % 10 = 7
So 56905-72-7 is a valid CAS Registry Number.