Description

1,9-Diaminononane is a linear aliphatic diamine with the CAS number 646-24-2, serving as a versatile bifunctional building block in organic synthesis. Its primary value lies in its ability to act as a flexible spacer and cross-linking agent, introducing both amine functionality and a defined nine-carbon chain into target molecules. This compound is essential for researchers and manufacturers in the polymer, pharmaceutical, and specialty chemical industries who require precise molecular architecture for advanced materials and bioactive compounds.

Application

• Polymer Synthesis: A key monomer for producing polyamides (nylon-9,9), polyurethanes, and epoxy curing agents, imparting flexibility and specific thermal properties.
• Pharmaceutical Intermediates: Used in the synthesis of drug candidates, particularly those requiring long-chain diamine linkers, such as certain antimicrobial and antitumor agents.
• Corrosion Inhibitors & Fuel Additives: Acts as an effective component in formulations designed to protect metal surfaces in industrial and automotive applications.
• Bioconjugation & Linker Chemistry: Employed to create cleavable or stable cross-links between biomolecules, proteins, and solid supports in diagnostic and research applications.
• Surfactants & Quaternary Ammonium Compounds: Serves as a precursor for cationic surfactants and biocides with tailored chain length for specific emulsifying and antimicrobial properties.
• Chelating Agents & Metal Complexation: Used to synthesize ligands for metal ion sequestration, catalysis, and in analytical chemistry.

Basic Information

Item	Detail
Product Name	1,9-Diaminononane
CAS No.	646-24-2
Molecular Formula	C9H22N2
Molecular Weight	158.28 g/mol
Synonyms	Nonamethylenediamine; 1,9-Nonanediamine; Nonane-1,9-diamine; 9-Aminononylamine; Pelargonic diamine; 1,9-Diaminopelargonic acid (deprotonated form); DN9
EINECS	211-470-0

Quality Control

Our 1,9-Diaminononane is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) documenting purity, physical characteristics, and safety data are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and carbon dioxide. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Individual impurity ≤ 0.5%
Total Impurities	≤ 2.0%

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