5-Methoxypyridine-3-carboxylic acid

CAS 20826-03-3C7H7NO3Chemical Synthesis

5-Methoxypyridine-3-carboxylic acid (CAS: 20826-03-3; C7H7NO3; MW: 153.14) is a heterocyclic building block utilised in chemical synthesis. This pyridine derivative serves as a valuable intermediate in the development of complex organic molecules, particularly within the pharmaceutical and agrochemical research sectors. Its specific structural features make it suitable for targeted chemical modifications and incorporation into novel compound designs.

IUPAC: 5-Methoxynicotinic acid

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5-Methoxypyridine-3-carboxylic acid (C7H7NO3) — chemical structure, CAS 20826-03-3; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisHeterocyclic Building BlocksPyridines

01 /Applications

Pharmaceutical Intermediate

Utilised in the synthesis of active pharmaceutical ingredients (APIs) and drug discovery programmes. Its pyridine core and functional groups allow for diverse derivatisation pathways.

Agrochemical Research

Serves as a building block in the development of novel agrochemicals, including herbicides, insecticides, and fungicides. Its structure can be modified to target specific biological pathways.

Organic Synthesis Reagent

Employed as a versatile reagent in general organic synthesis for the construction of complex heterocyclic compounds. Facilitates the introduction of the 5-methoxypyridine moiety into larger molecular frameworks.

02 /Properties

Molecular weight	153.14
Empirical formula	C7H7NO3
Assay	97%
Melting point	127-131 °C

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

20826-03-3

MDL number

MFCD01603648

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 5-Methoxypyridine-3-carboxylic acid used for?

5-Methoxypyridine-3-carboxylic acid is primarily used as a building block in chemical synthesis, particularly for pharmaceutical intermediates and agrochemical research.

What are the CAS number and chemical formula for 5-Methoxypyridine-3-carboxylic acid?

The CAS number is 20826-03-3, and the chemical formula is C7H7NO3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 5-Methoxypyridine-3-carboxylic acid with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.

How should 5-Methoxypyridine-3-carboxylic acid be handled?

5-Methoxypyridine-3-carboxylic acid is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/eye protection/face protection.