Description

1,11-Diaminoundecane is a linear aliphatic diamine with the CAS number 822-08-2, serving as a versatile bifunctional building block in advanced organic synthesis. This compound matters for its ability to introduce a long, flexible hydrocarbon chain terminated with two reactive primary amine groups, enabling the creation of polymers, cross-linkers, and specialty chemicals with tailored properties. Industries such as polymer manufacturing, epoxy curing, and life sciences research require this high-purity intermediate for developing materials with specific mechanical strength, thermal stability, or biological functionality.

Application

• Polymer Synthesis: A key monomer for producing polyamides (nylons), polyurethanes, and polyurea elastomers, imparting flexibility and chemical resistance.
• Epoxy Curing Agent: Functions as a curing agent or hardener for epoxy resin systems, contributing to improved toughness and cross-link density in coatings and composites.
• Corrosion Inhibitor Intermediate: Used in the synthesis of long-chain amine-based corrosion inhibitors for industrial water treatment and oilfield applications.
• Surface Active Agents: Serves as a precursor for cationic surfactants and fabric softeners, leveraging its two amine sites for quaternization.
• Pharmaceutical & Bioconjugation: Employed as a spacer or linker molecule in drug delivery systems, diagnostic reagents, and bioconjugation chemistry due to its amine reactivity and chain length.
• Research & Development: A valuable reagent in organic synthesis for creating macrocycles, dendrimers, and other complex molecular architectures.

Basic Information

Product Name	1,11-Diaminoundecane
CAS No.	822-08-2
Molecular Formula	C₁₁H₂₆N₂
Molecular Weight	186.34 g/mol
Synonyms	Undecamethylenediamine; 1,11-Undecanediamine; 11-Aminoundecylamine; α,ω-Undecanediamine; Norspermine (biological context); 1,11-Diamino-n-undecane; 822-08-2 (CAS Registry Number)
EINECS	212-500-4

Quality Control

Our 1,11-Diaminoundecane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profile analysis by gas chromatography (GC) or HPLC, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, physical properties, and specific test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). To prevent degradation and caking, keep the container tightly sealed when not in use and consider storage under an inert atmosphere for long-term preservation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or flakes
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
Melting Point	58 - 62 °C
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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