232931-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 232931-87-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,2,9,3 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 232931-87:
(8*2)+(7*3)+(6*2)+(5*9)+(4*3)+(3*1)+(2*8)+(1*7)=132
132 % 10 = 2
So 232931-87-2 is a valid CAS Registry Number.