144265-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144265-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,2,6 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144265-71:
(8*1)+(7*4)+(6*4)+(5*2)+(4*6)+(3*5)+(2*7)+(1*1)=124
124 % 10 = 4
So 144265-71-4 is a valid CAS Registry Number.
144265-71-4Relevant articles and documents
A new one step synthetic approach to the isoxazolo[4,5-b]pyridine system
Nesi,Giomi,Turchi,Tedeschi,Ponticelli
, p. 2349 - 2355 (1992)
A convenient direct entry to the title ring system by condensation-cyclization processes of 3,5-dimethyl-4-nitroisoxazole (1) with the enamines 2 and 8 is reported; some reactions of the resulting N-oxides 5 and 10 are also described.