3231-87-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3231-87-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,3 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3231-87:
(6*3)+(5*2)+(4*3)+(3*1)+(2*8)+(1*7)=66
66 % 10 = 6
So 3231-87-6 is a valid CAS Registry Number.