1-Propylpyrrolidine stands out as an organic compound featuring a five-membered pyrrolidine ring. The core of this molecule lies in the nitrogen atom bound to a three-carbon propyl group, shaping both its structure and behaviors in physical and chemical contexts. Chemists recognize it under the formula C7H15N. Its density drifts around 0.821 g/mL at 25°C. Compared to familiar solvents and amines, its appearance can shift depending on storage temperature and purity, showing up as a colorless liquid under most lab conditions. The scent sticks with the characteristic amine sharpness, so lab workers usually reach for gloves and fume hoods well before popping the cap.
This compound comes up again and again as a building block in synthetic chemistry, especially during research into pharmaceuticals, agrochemicals, and specialty chemicals. Its structure lets it act as a base and a nucleophile, eager to give up that lone electron pair on the nitrogen. Its boiling point, usually landing near 150°C under standard pressure, puts it in a comfortable spot for distillation and purification. The melting point doesn’t register clearly under normal conditions, since it stays liquid at room temperature down to well-below-zero ranges. Unlike classic solid reagents, you won’t find it as flakes, powder, pearls, or crystals; in every package I’ve ever opened, it pours as a fluid, ready for transfer and mixing. As for solubility, 1-Propylpyrrolidine dissolves smoothly in water, giving off that slight alkaline taste and odor, and blends with most common polar solvents, especially ethanol and ether. The reactivity traces back to that nitrogen: alkylation, acylation, and salt formation all run straightforward with it as a starting material.
The molecule fits the C7H15N sum, showing up in lab reports with its structure: a pyrrolidine ring, four carbons and one nitrogen, with the nitrogen carrying a propyl side chain. Chemists sketch out the ring as a pentagon with the propyl group pointing outward. Looking at a molecular model, that little side chain gives the entire molecule its signature flexibility, tuning its interactions for physical and synthetic uses. The HS Code assigned by international trade is 2933790099, classifying it among heterocyclic compounds with nitrogen hetero-atom(s) only. The molar mass measures about 113.2 g/mol, a point which helps during reaction stoichiometry or scaling up synthesis plans.
In storage, suppliers ship 1-Propylpyrrolidine as a liquid. No granules, beads, pearls, or crystalline states show up in supply catalogs or during field handling—its volatility and low tendency to crystallize keep those solid forms out of reach. Standard packaging stays compatible with most amines: HDPE bottles, steel drums, or lined glass containers, all labeled to warn users about its chemical nature. Bulk users will find sellers offer it by the liter or kilogram, keeping concentrations consistent across batches. Quality control labs always run purity tests, commonly reporting assays above 98%, which really matters if you’re plotting multi-step syntheses or need predictable yields.
No chemist trusts a new liquid without checking the MSDS, and with 1-Propylpyrrolidine the warnings come in plain language. It acts as a base, eating into skin on contact and burning eyes if splashes occur. The vapor can irritate the respiratory system. Spills can make the lab smell fishy in an instant, so it pays to wear gloves and goggles and to keep the bottle inside a fume hood. Folks using this material for the first time should keep neutralizing agents and absorbent materials at hand. Despite the hazards, it isn’t considered a major environmental pollutant, but large spills never help delicate ecosystems. Transporters follow standard regulations for organic bases, keeping containers securely sealed and labeled. Waste disposal means following local rules for amine-containing organics—usually that means sending it off to certified chemical waste facilities.
1-Propylpyrrolidine traces its start to smaller molecules: often, producers combine pyrrolidine with propyl halides under controlled temperatures to drive out the finished liquid. Its availability affects the synthesis of more complex molecules in both research and production, turning up in the ingredient lists for custom pharmaceuticals, specialty herbicides, and catalytic systems. I’ve noticed researchers choose it to introduce flexibility or alter solubility in their target compounds, especially where a simple propyl group shifts bioavailability or activity. The tuneable behavior of this compound keeps it relevant for laboratories aiming for fine control over reaction pathways or making new intermediates.
Any technician or chemist worth their salt treats bottles of 1-Propylpyrrolidine with care. The liquid invites spills, so bottles go back on the shelf quickly and tightly closed. Store it away from acids, oxidizers, and open flames. In the field, I’ve always seen teams double-checking labels and wearing nitrile gloves, even for quick transfers. Safety showers and eyewash stations tend to stay nearby in any well-managed prep area. For anyone needing to use this chemical, a clear understanding of its reactivity, physical qualities, and interaction with humans cuts down on workplace mishaps and helps keep processes smooth and predictable.
