276887-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 276887-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,6,8,8 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 276887-89:
(8*2)+(7*7)+(6*6)+(5*8)+(4*8)+(3*7)+(2*8)+(1*9)=219
219 % 10 = 9
So 276887-89-9 is a valid CAS Registry Number.