Description

Cinnoline-4-Carboxylic Acid CAS NO 21905-86-2 is a high-purity heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique fused bicyclic structure makes it a valuable intermediate for developing novel compounds with specific biological and material properties. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create innovative active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for targeting various enzyme systems and receptors.
• Agrochemical Research: Used in developing new generations of herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Material Science: Building block for creating organic semiconductors, ligands for metal-organic frameworks (MOFs), and specialty polymers.
• Chemical Synthesis: Versatile scaffold for constructing complex heterocyclic compounds in academic and industrial R&D laboratories.
• Ligand Synthesis: Useful for preparing chelating agents and catalysts used in asymmetric synthesis and coordination chemistry.

Basic Information

Product Name	Cinnoline-4-Carboxylic Acid
CAS No.	21905-86-2
Molecular Formula	C9H6N2O2
Molecular Weight	174.16 g/mol
Synonyms	4-Cinnolinecarboxylic Acid; Cinnoline-4-carboxylic acid; 1,2-Benzodiazine-4-carboxylic acid; 4-Carboxycinnoline; 21905-86-2; Cinnoline-4-carboxylate; 4-Cinnolinecarboxylate; 1,2-Diazanaphthalene-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our Cinnoline-4-Carboxylic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, and is supplied with a detailed Certificate of Analysis (COA). We adhere to cGMP principles where applicable, ensuring the material meets the stringent requirements for research and development use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled and stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.