211376-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211376-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,3,7 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 211376-91:
(8*2)+(7*1)+(6*1)+(5*3)+(4*7)+(3*6)+(2*9)+(1*1)=109
109 % 10 = 9
So 211376-91-9 is a valid CAS Registry Number.