211996-16-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211996-16-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,9,9 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 211996-16:
(8*2)+(7*1)+(6*1)+(5*9)+(4*9)+(3*6)+(2*1)+(1*6)=136
136 % 10 = 6
So 211996-16-6 is a valid CAS Registry Number.