40156-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40156-90-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,5 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40156-90:
(7*4)+(6*0)+(5*1)+(4*5)+(3*6)+(2*9)+(1*0)=89
89 % 10 = 9
So 40156-90-9 is a valid CAS Registry Number.