276693-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 276693-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,6,6,9 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 276693-71:
(8*2)+(7*7)+(6*6)+(5*6)+(4*9)+(3*3)+(2*7)+(1*1)=191
191 % 10 = 1
So 276693-71-1 is a valid CAS Registry Number.