160661-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 160661-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,6,6 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 160661-42:
(8*1)+(7*6)+(6*0)+(5*6)+(4*6)+(3*1)+(2*4)+(1*2)=117
117 % 10 = 7
So 160661-42-7 is a valid CAS Registry Number.