70771-17-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70771-17-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,7,7 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70771-17:
(7*7)+(6*0)+(5*7)+(4*7)+(3*1)+(2*1)+(1*7)=124
124 % 10 = 4
So 70771-17-4 is a valid CAS Registry Number.