17228-70-5 Usage
General Description
3,5-Dichloro-4-hydroxypyridine is a chemical compound that belongs to the pyridine group. It is a derivative of pyridine with two chlorine atoms attached at positions 3 and 5, and a hydroxyl group at position 4. 3,5-Dichloro-4-hydroxypyridine is commonly used in the synthesis of pharmaceuticals, agrochemicals, and other organic compounds. It is also used as an intermediate in the production of various chemical products. 3,5-Dichloro-4-hydroxypyridine has various industrial applications and is an important building block in organic chemistry. It is known for its role in the development of new drugs and other biologically active compounds.
Check Digit Verification of cas no
The CAS Registry Mumber 17228-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,2 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17228-70:
(7*1)+(6*7)+(5*2)+(4*2)+(3*8)+(2*7)+(1*0)=105
105 % 10 = 5
So 17228-70-5 is a valid CAS Registry Number.
InChI:InChI=1/C5H3Cl2NO/c6-3-1-8-2-4(7)5(3)9/h1-3H
17228-70-5Relevant articles and documents
The Preparation and Characterization of Some N-Chloro-2- and N-Chloro-4-pyridones
Katritzky, Alan R.,Khan, Ghulam R.,Leahy, David E.,Rosa, Michael De
, p. 4784 - 4786 (1984)
2-Pyridone and 5-chloro-2-pyridone with NaOCl yield 1-chloro-2-pyridone and 1,5-dichloro-2-pyridone, respectively, which rapidly rearrange into 5-chloro- and 3,5-dichloro-2-pyridone. 3,5-Dichloro-2-pyridone with NaOCl yields 1,3,5-trichloro-2-pyridone which shows considerable stability. 4-Pyridone is similarly converted by NaOCl into 3,5-dichloro-4-pyridone via an unstable N-chloro derivative. 1,3,5-Trichloro-4-pyridone was obtained from 3,5-dichloro-4-pyridone and NaOCl.
