279679-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 279679-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,9,6,7 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 279679-99:
(8*2)+(7*7)+(6*9)+(5*6)+(4*7)+(3*9)+(2*9)+(1*9)=231
231 % 10 = 1
So 279679-99-1 is a valid CAS Registry Number.