20906-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20906-17-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,0 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20906-17:
(7*2)+(6*0)+(5*9)+(4*0)+(3*6)+(2*1)+(1*7)=86
86 % 10 = 6
So 20906-17-6 is a valid CAS Registry Number.