123877-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123877-56-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,7 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 123877-56:
(8*1)+(7*2)+(6*3)+(5*8)+(4*7)+(3*7)+(2*5)+(1*6)=145
145 % 10 = 5
So 123877-56-5 is a valid CAS Registry Number.