Ethyl 2-Oxocyclopentanecarboxylate, often abbreviated as CECP, stands out in the world of specialty chemicals as a versatile raw material. Laboratories and factories look at CECP for its unique combination of physical form and reactivity. At a glance, this compound often appears as a colorless to faintly yellow solid, although in certain conditions—especially with warmth or upon increased handling—it can shift toward a viscous, oily liquid. The presence of both a ketone and an ester group on the cyclopentane ring gives CECP a distinct place among similar molecules, directly affecting how it behaves during reactions or in final materials.
Molecular formula for Ethyl 2-Oxocyclopentanecarboxylate comes in as C8H12O3, and it carries a molecular weight of about 156.18 g/mol. Its exact structure places an ethyl ester and a keto group onto a five-membered ring, opening up several doors for chemists working on synthesis. The density sits commonly around 1.095 g/cm³ at 20°C, although slight shifts occur based on purity and storage. In its purest form, CECP can come in crystalline flakes, small compressed pearls, or a dense powder. Some suppliers also offer it as a clear solution to facilitate easier mixing into reactions or blends.
For those looking at bulk movement or cross-border sales, the HS Code for Ethyl 2-Oxocyclopentanecarboxylate typically lands under 2914.40. This classification groups it with ketones and quinones, which matches its structure and functional use. Tracking raw materials for compliance purposes or tariff calculations means spotting this number on customs paperwork or laboratory invoices.
In application, CECP brings a moderate level of volatility. Its melting point varies, sometimes registering below room temperature, pushing it into a soft, waxy consistency that can complicate storage if temperature control is lacking. For bulk processing, keeping the drums or flasks in a cool, dry spot really makes a difference. Solubility checks show good compatibility with most polar organic solvents, allowing quick integration into reaction media. The compound resists hydrolysis under neutral conditions, although prolonged contact with strong acids or bases encourages breakdown to smaller carboxylate and ketone fragments.
Producers deliver CECP in a spectrum of forms, from glistening solid flakes to small pearls, or even fine powders. In smaller laboratories, it might be poured straight from a bottle as a viscous oil or syrup, especially if ambient humidity drifts upward. For industrial users, drums or large kegs preserve crystalline material better, reducing the risk of clumping or unwanted reactions. Some manufacturers offer it as a prepared solution, pre-diluted in ethanol or another compatible solvent, which gives formulation chemists a running start with dosing or metering at scale.
CECP sees use as a key intermediate for fine chemicals, pharmaceutical synthesis, and specialty coatings. The ketone position invites nucleophiles, while the ester group can undergo transesterification or hydrolysis as needed. Synthetic pathways often build on its reactive sites, linking up to larger molecules or forming complex ring systems. Within material science, this compound plays its part as a modifier or backbone for resins and advanced polymers. Safety data tells a careful story: direct contact may irritate skin or eyes, and inhalation of fine dust or aerosol can bring respiratory discomfort. Working with proper gloves, goggles, and good ventilation stands as common sense in the lab—something that’s hammered into every new chemist early on. Those who handle drums or prepare large batch solutions lean on spill trays and emergency showers, never taking for granted the energetic nature of such raw materials.
Every chemical comes with its set of hazards, and CECP fits the pattern with moderate toxicity on contact or ingestion. The material’s harmful edge shows up in acute toxicity data, with some risk to aquatic life if allowed to escape into waterways. Storage controls and careful waste handling can reduce these risks. Anybody involved in its transport or disposal learns to follow local and international regulations, respect MSDS advice, and keep an eye on changing environmental rules. Safe use doesn’t end with the first shipment—tracking conditions, inspecting containers, and keeping staff informed all count toward a safer workplace.
In everyday use, Ethyl 2-Oxocyclopentanecarboxylate bridges the gap between bench-top reactions and full-scale production. Its consistent performance, flexible material forms, and clear chemical reactivity make it a trusted choice in synthesis. Companies that value good sourcing pay attention to each drum’s lot number, density, and certificate of analysis. With rising concern over chemical safety and transparency, suppliers publish detailed specification sheets and recommend in-depth hazard training. Looking at industry trends, there’s growing pressure to improve packaging for safer handling, to cut down on solvent waste, and to encourage closed-loop recycling where possible. The challenge remains: to harness the unique properties of this compound, getting the full benefit for science and industry, while keeping a sharp eye on health impacts and the broader environment.
