263350-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263350-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,3,5 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 263350-03:
(8*2)+(7*6)+(6*3)+(5*3)+(4*5)+(3*0)+(2*0)+(1*3)=114
114 % 10 = 4
So 263350-03-4 is a valid CAS Registry Number.
263350-03-4Relevant articles and documents
A new and rapid access to homochiral 2,3-dihydro-oxazolo[2,3-b]quinazolin-5-ones
Gueyrard, David,Leoni, Onofrio,Palmieri, Sandro,Rollin, Patrick
, p. 337 - 340 (2001)
Starting from homochiral 1,3-oxazolidine-2-thiones 1, a two-step sequence led to homotopic 2,3-dihydro-oxazolo[2,3-b]quinazolin-5-one derivatives 3. The sequence was developed and studied regarding its scope and limitations.
