211441-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211441-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,4,4 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 211441-67:
(8*2)+(7*1)+(6*1)+(5*4)+(4*4)+(3*1)+(2*6)+(1*7)=87
87 % 10 = 7
So 211441-67-7 is a valid CAS Registry Number.