1312784-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1312784-87-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,7,8 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1312784-87:
(9*1)+(8*3)+(7*1)+(6*2)+(5*7)+(4*8)+(3*4)+(2*8)+(1*7)=154
154 % 10 = 4
So 1312784-87-4 is a valid CAS Registry Number.