216166-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216166-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,1,6 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 216166-93:
(8*2)+(7*1)+(6*6)+(5*1)+(4*6)+(3*6)+(2*9)+(1*3)=127
127 % 10 = 7
So 216166-93-7 is a valid CAS Registry Number.