71771-27-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71771-27-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,7 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71771-27:
(7*7)+(6*1)+(5*7)+(4*7)+(3*1)+(2*2)+(1*7)=132
132 % 10 = 2
So 71771-27-2 is a valid CAS Registry Number.