40527-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40527-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,2 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40527-81:
(7*4)+(6*0)+(5*5)+(4*2)+(3*7)+(2*8)+(1*1)=99
99 % 10 = 9
So 40527-81-9 is a valid CAS Registry Number.