170107-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170107-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,1,0 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 170107-20:
(8*1)+(7*7)+(6*0)+(5*1)+(4*0)+(3*7)+(2*2)+(1*0)=87
87 % 10 = 7
So 170107-20-7 is a valid CAS Registry Number.