52092-45-2 Usage
General Description
2-Amino-4-nitropyridine-N-oxide, also known as NANO, is a chemical compound with the molecular formula C5H4N4O3. It is a yellow crystalline solid that is used in the production of pharmaceuticals and dyes. NANO is also a precursor to other nitrogen-containing heterocycles. It is considered to be a high-energy material and is used in the development of explosives and propellants due to its explosive properties. Additionally, NANO has potential applications in the field of organic electronics and as a reagent in organic synthesis. However, it is important to handle NANO with caution as it is toxic and may cause irritation to the skin and eyes upon contact.
Check Digit Verification of cas no
The CAS Registry Mumber 52092-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,0,9 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 52092-45:
(7*5)+(6*2)+(5*0)+(4*9)+(3*2)+(2*4)+(1*5)=102
102 % 10 = 2
So 52092-45-2 is a valid CAS Registry Number.
InChI:InChI=1/C5H6N3O3/c6-5-3-4(8(10)11)1-2-7(5)9/h1-3,5H,6H2/q+1
52092-45-2Relevant articles and documents
Synthesis method of 2-amino-4-fluoropyridine
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Paragraph 0029-0031, (2018/03/23)
The invention discloses a synthesis method of 2-amino-4-fluoropyridine. The synthesis method comprises the following synthesis steps: 1, taking diaminopyridine as the raw material, carrying out oxidation reaction to prepare 2-aminopyridine N-oxide a; 2, subjecting the compound a to nitration reaction with mixed acid to obtain 2-amino-4-nitropyridine N-oxide b; 3, carrying out acylation reaction onthe compound b and an acylation reagent to obtain 2-acetamino-4-nitropyridine N-oxide c; 4, carrying out reduction reaction on the compound c to obtain 2-acetamino-4-aminopyridine d; 5, carrying outdiazo-reaction on the compound d and HBF4 to obtain diazonium fluoroborate e; and 6, carrying out Balz-Schiemann reaction on the compound e to introduce fluorine atoms and conducting hydrolysis deacetylation to obtain 2-amino 4-fluoropyridine. The method provided by the invention solves the problems of long synthesis route, complicated operation, serious pollution, high cost, low yield and the like in existing synthesis methods.
