944401-77-8 Usage
Chemical Properties
White powder
Uses
2-Amino-4-fluoropyridine is an important intermediate for organic synthesis and pharmaceuticals.
Check Digit Verification of cas no
The CAS Registry Mumber 944401-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,4,4,0 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 944401-77:
(8*9)+(7*4)+(6*4)+(5*4)+(4*0)+(3*1)+(2*7)+(1*7)=168
168 % 10 = 8
So 944401-77-8 is a valid CAS Registry Number.
InChI:InChI=1/C5H5FN2/c6-4-1-2-8-5(7)3-4/h1-3H,(H2,7,8)
944401-77-8Relevant articles and documents
Preparation method of 4-fluoropyridine-2-amine
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, (2021/01/29)
The invention discloses a preparation method of 4-fluoropyridine-2-amine, which comprises the following steps: by using 4-chloropyridine-2-carbonitrile as a raw material, carrying out a halogen exchange reaction, a cyano hydrolysis reaction and a Hofmann degradation reaction to prepare the 4-fluoropyridine-2-amine. The method is simple in synthesis process, mild in reaction condition, high in yield and good in product purity; and the used raw materials are easy to obtain, low in cost and suitable for industrial production.
