The product is 5-(Dimethylamino)pentylamine, an aliphatic diamine consisting of a five‑carbon pentamethylene chain terminated at one end by a primary amino group (–NH₂) and at the other by a tertiary dimethylamino group (–N(CH₃)₂). The linear, flexible spacer separates the two amine functionalities of different basicity and nucleophilicity, allowing for stepwise chemoselective derivatization. This compound serves as a bifunctional linker or chain extender in the synthesis of polyamines, surfactants, and bioactive molecules where a cationic dimethylammonium headgroup is desired.
5-(Dimethylamino)pentylamine is a valuable building block in medicinal chemistry and material science for introducing a basic, solubilizing tail onto pharmacophores. The primary amine of 5-(Dimethylamino)pentylamine can be acylated, sulfonylated, or coupled to carboxylic acids with complete selectivity over the tertiary dimethylamino group, which remains protonated at physiological pH. In drug discovery, 5-(Dimethylamino)pentylamine is employed to prepare peripherally selective opioid antagonists, cationic antimicrobial peptides, and ion‑channel blockers where a fixed positive charge improves target engagement. The industrial availability of 5-(Dimethylamino)pentylamine as a colorless liquid in multi‑kilogram quantities makes it an economical choice for process chemistry scale‑up.
Product Parameters
Parameter
Specification
Product Name
5-(Dimethylamino)pentylamine
CAS Number
3209-46-9
Molecular Formula
C₇H₁₈N₂
Molecular Weight
130.23 g/mol
Appearance
Colorless to pale yellow liquid
Boiling Point
50℃/ 3mm
Density
0.83–0.84 g/cm³ at 20 °C
Purity (GC)
≥98.0%
Solubility
Miscible with water, ethanol, THF; forms monohydrochloride salt soluble in water
Storage Condition
2-8°C, protect from light
Shelf Life
24 months under recommended conditions
Why Cosperpharm? – Our Competitive Advantages
Advantage
Detail
Production Strength
GMP-certified campus spanning 100+ mu, 3 multi-purpose workshops, 6 D-grade clean zone production lines, and 150+ reactors (20L–5000L), supporting high/low temp, anaerobic & hydrogenation; kg to ton scale production.
Fast Delivery
R&D samples: one week; commercial orders: 1–2 months after payment. Express (DHL/FedEx) or air/sea freight available.
Global Partners
Trusted by 30+ pharmaceutical companies in USA, Europe, India, Brazil, and Southeast Asia; long-term cooperation with generic drug manufacturers, CROs, and impurity standard distributors.
Licensed Exporter
Valid drug import/export license — no compliance delays.
Dual Quality Grades
Both research/pharma grade(≥98%)and high-purity impurity grade(≥99%)available to meet diverse customer needs.
Synthetic Route
5-(Dimethylamino)pentylamine can be synthesized by the reductive amination of 5‑aminopentanal with dimethylamine, or more commonly by the reduction of 5‑(dimethylamino)pentanenitrile (CAS 3209-45-8) with hydrogen over Raney nickel or lithium aluminum hydride. The resulting crude diamine is purified by fractional distillation. Cosperpharm’s route ensures low residual nitrile and amide by‑products.
Application Scenarios
1.Opioid Antagonist Peripheral Restriction
Used to attach a permanently charged dimethylammonium tail to naloxone or naltrexone scaffolds.
2.Cationic Antimicrobial Peptide Synthesis
Serves as a lysine mimic with a dimethylamino terminus in solid‑phase peptide synthesis.
3.Ion‑Channel Blocker Design
Incorporated into voltage‑gated sodium channel blockers to introduce a basic amine that interacts with the selectivity filter.
4.Surfactant and Emulsifier Production
The primary amine is acylated with fatty acids to produce amidoamine surfactants for personal care.
5.Polyurethane Chain Extender
Reacts with diisocyanates to introduce tertiary amine sites into polyurethane foams.
Contact Us
To include this 5-(Dimethylamino)pentylamine in your next polymer or drug conjugate project, contact Cosperpharm’s amines product manager — we can dispatch a 100‑mL sample for your initial experiments and provide a formal quotation for larger volumes within 24 hours.
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