861783-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861783-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,8 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 861783-23:
(8*8)+(7*6)+(6*1)+(5*7)+(4*8)+(3*3)+(2*2)+(1*3)=195
195 % 10 = 5
So 861783-23-5 is a valid CAS Registry Number.