1305712-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1305712-87-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,5,7,1 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1305712-87:
(9*1)+(8*3)+(7*0)+(6*5)+(5*7)+(4*1)+(3*2)+(2*8)+(1*7)=131
131 % 10 = 1
So 1305712-87-1 is a valid CAS Registry Number.