1507138-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1507138-87-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,0,7,1,3 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1507138-87:
(9*1)+(8*5)+(7*0)+(6*7)+(5*1)+(4*3)+(3*8)+(2*8)+(1*7)=155
155 % 10 = 5
So 1507138-87-5 is a valid CAS Registry Number.