66909-30-6

Basic information

• Product Name: 2-Chloro-5-methylpyridine-3-carboxylic acid
• Synonyms: 2-Chloro-5-methylpyridine-3-carboxylic acid;2-chloro-5-methyl-3-Pyridinecarboxylic acid;2-Chloro-5-methylpyridin-3-ylcarboxylic acid;2-Chloro-5-Methylnicotinic Acid(WX614044)
• CAS NO: 66909-30-6
• Molecular Formula: C₇H₆ClNO₂
• Molecular Weight: 171.58
• Product Categories: pharmacetical;Heterocycle-Pyridine series
• Mol File: 66909-30-6.mol

Chemical Properties

• Boiling Point: 331.175 °C at 760 mmHg
• Flash Point: 154.089 °C
• Appearance: /
• Density: 1.39 g/cm³
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.579
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 2-Chloro-5-methylpyridine-3-carboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Chloro-5-methylpyridine-3-carboxylic acid(66909-30-6)
• EPA Substance Registry System: 2-Chloro-5-methylpyridine-3-carboxylic acid(66909-30-6)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• WGK Germany: 3
• HazardClass: IRRITANT
• Hazardous Substances Data: 66909-30-6(Hazardous Substances Data)

Usage

Uses

Used in Pharmaceutical Synthesis:
2-Chloro-5-methylpyridine-3-carboxylic acid serves as a building block in organic synthesis, particularly for the development of various drugs. Its unique structural features allow for the creation of diverse pharmaceutical compounds with potential therapeutic applications.
Used in Agrochemical Production:
In the agrochemical industry, 2-Chloro-5-methylpyridine-3-carboxylic acid is used as a key intermediate in the production of crop protection agents. Its incorporation into these agents can contribute to the development of effective and targeted pest control solutions.
Overall, 2-Chloro-5-methylpyridine-3-carboxylic acid plays a significant role in both the pharmaceutical and agrochemical sectors, acting as a versatile intermediate for the synthesis of a wide range of compounds with practical applications.

InChI:InChI=1/C7H6ClNO2/c1-4-2-5(7(10)11)6(8)9-3-4/h2-3H,1H3,(H,10,11)

Upstream product

• 124-38-9 carbon dioxide 
• 65169-43-9 2-chloro-5-methylnicotinic acid methyl ester 
• 18368-64-4 2-chloro-5-methylpyridine 

Downstream Products

• 894074-85-2 ethyl 2-chloro-5-methylpyridine-3-carboxylate 
• 65169-43-9 2-chloro-5-methylnicotinic acid methyl ester 

Relevant articles and documents

AMINO NICOTINIC AND ISONICOTINIC ACID DERIVATIVES AS DHODH INHIBITORS

A compound of formula (I) wherein : - one of the groups G1represents a nitrogen atom or a group CRc and the other represents a group CRc; - G2 represents a nitrogen atom or a group CRd; - R1 represents a group selected from hydrogen atoms, halogen atoms, C1-4 alkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, and C3-8 cycloalkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups; - R2 represents a group selected from hydrogen atoms, halogen atoms, hydroxyl groups, C1-4 alkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, C1-4 alkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, and C3-8 cycloalkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups; - Ra, Rb and Rc independently represent groups selected from hydrogen atoms, halogen atoms, C1-4 alkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, and C1-4alkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups; - Rd represents a group selected from hydrogen atoms, halogen atoms, hydroxyl groups, C1-4 alkyl groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, and C1-4 alkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, and C3-8 cycloalkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups; - one of the groups G3 and G4 is a nitrogen atom and the other is a CH group; - M is a hydrogen atom or an pharmaceutically acceptable cation with the proviso that, when at least one of the groups Ra and Rb represent a hydrogen atom and G2 is a group CRd, then Rd represents a groups selected from C1-4 alkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups, C3-8 cycloalkoxy groups which may be optionally substituted by 1, 2 or 3 substituents selected from halogen atoms and hydroxy groups; and the pharmaceutically acceptable salts and N-oxides thereof.

PYRIDOPYRIMIDINE DERIVATIVES AND THEIR USE AS PDE4 INHIBITORS

The present invention provides a compound of a formula (I): wherein the variables are defined herein; to a process for preparing such a compound; and to the use of such a compound in the treatment of a PDE 4 mediated disease state.

ACYLATED SPIROPIPERIDINE DERIVATIVES AS MELANOCORTIN-4 RECEPTOR MODULATORS

Certain novel N-acylated spiropiperidine derivatives are ligands of the human melanocortin receptor(s) and, in particular, are selective ligands of the human melanocortin-4 receptor (MC-4R). They are therefore useful for the treatment, control, or prevention of diseases and disorders responsive to the modulation of MC-4R, such as obesity, diabetes, nicotine addiction, alcoholism, sexual dysfunction, including erectile dysfunction and female sexual dysfunction.

NICOTINAMIDE DERIVATIVES USEFUL AS PDE4 INHIBITORS

This invention relates to nicotinamide derivative of general formula (I), in which R1, R2 and R3 have the meanings defined herein, and to compositions containing and the uses of such derivatives as PDE4 inhibitors.

Nicotinic acid hydrazone compounds which have useful herbicidal compositions

The invention relates to nicotinic acid hydrazone derivatives of formula I: STR1 in which the various symbols are as defined in the description, and their use as herbicides or as intermediates in the synthesis of herbicides.

Herbicidal pyridopyridazinones and pyridopyridazinethiones

Pyrido[2,3-d]pyridazin-5-one and pyrido[2,3-d]pyridazin-5-thione derivatives of general formula (I): STR1 wherein R and R1 independently represent hydrogen, optionally halogenated alkyl, alkenyl or alkynyl, optionally substituted heterocycle or a group --[CR41 R42 ]n -(phenyl)-(R3)q ; R2 represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, CN; --CO2 R4 ; --S(O)r R4 ; --NO2 ; --NR41 R42 ; --OH; --COR4, --S(O)r R5, --CO2 R5, --OR5 ; --CONR41 R42, --OSO2 R5, --OSO2 R6, --OCH2 R5, --N(R41)COR6, --N(R41)SO2 R5, --N(R41)SO2 R6, --SO2 NR41 R42, optionally substituted phenyl, alkoxy or haloalkoxy; X represents oxygen or sulphur; R3 represents halogen, optionally halogenated alkyl, alkenyl, alkoxy, alkynyl, --OH, --S(O)r R4, --CO2 R4, COR4, --CN, --NO2, --NR41 R42, --OR5 ; --CONR41 R42, --OSO2 R5, --OSO2 R6, --OCH2 R5, --N(R41)COR6, --N(R41)SO2 R5, --N(R41)SO2 R6 or --SO2 NR41 R42 ; R4 represents a hydrogen atom or optionally halogenated C1-6 alkyl; R41 and R42, which may be the same or different, each represents a hydrogen atom or optionally halogenated C1-4 alkyl; R5 represents a phenyl group optionally substituted by from one to five groups selected from halogen, nitro, cyano, R4 and --OR4 ; m represents zero or an integer from one to three; n represents zero, one or two; where n is two, the groups --(CR41 R42)-- may be the same or different; q represents zero or an integer from one to five; r represents zero, one or two; with the proviso that when m represents zero R and R1 do not simultaneously represent hydrogen; and agriculturally acceptable salts thereof are useful as herbicides.