87157-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87157-40-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,5 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87157-40:
(7*8)+(6*7)+(5*1)+(4*5)+(3*7)+(2*4)+(1*0)=152
152 % 10 = 2
So 87157-40-2 is a valid CAS Registry Number.