1239734-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239734-87-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,7,3 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1239734-87:
(9*1)+(8*2)+(7*3)+(6*9)+(5*7)+(4*3)+(3*4)+(2*8)+(1*7)=182
182 % 10 = 2
So 1239734-87-2 is a valid CAS Registry Number.