111166-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111166-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,1,6 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111166-91:
(8*1)+(7*1)+(6*1)+(5*1)+(4*6)+(3*6)+(2*9)+(1*1)=87
87 % 10 = 7
So 111166-91-7 is a valid CAS Registry Number.
111166-91-7Relevant academic research and scientific papers
4-hydroxycoumarin derivatives
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, (2008/06/13)
The invention provides 4-hydroxycoumarin compounds of general formula STR1 wherein R1 and R2 are independently selected from hydrogen and halogen atoms and R represents a group of formula STR2 wherein one of n and n' is O, the other
