27914-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27914-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,1 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 27914-99:
(7*2)+(6*7)+(5*9)+(4*1)+(3*4)+(2*9)+(1*9)=144
144 % 10 = 4
So 27914-99-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H8N2O/c1-5-3-4-6(2)8(9)7-5/h3-4H,1-2H3
27914-99-4Relevant academic research and scientific papers
Synthesis of N,N-Dioxopyridazines
Rozen, Shlomo,Shaffer, Avshalom
supporting information, p. 4707 - 4709 (2017/09/23)
Despite many efforts, one of the smallest heterocycles containing two nitrogen atoms, pyridazine, could not be converted to its N,N-dioxide (see, however, Nakadate et al. Chem. Pharm. Bull. 1970, 18, 1211-1218). HOF·CH3CN, made easily from diluted fluorine, was able to accomplish this task in a fast reaction with good yields.
