861799-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861799-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,9 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 861799-91:
(8*8)+(7*6)+(6*1)+(5*7)+(4*9)+(3*9)+(2*9)+(1*1)=229
229 % 10 = 9
So 861799-91-9 is a valid CAS Registry Number.