Di-2-Thienylglycolic Acid Methyl Ester comes from the group of thiophene-based esters. Its systematic molecular formula, C9H8O2S2, gives a clear idea about its structure: two thiophene rings attached to a glycolic acid backbone, then finished with a methyl ester group. Looking at its molecular weight, which is 212.29 g/mol, you get a sense of its scale in a laboratory or commercial application. From my own days in chemical research, each new molecule tells part of its story through scent, solubility, and stability. This one shows up as a solid under standard conditions but changes form under different temperatures, sometimes presenting as off-white flakes, a crystalline powder, or fine pearls.
This compound stands out due to its moderate density, which clocks in at around 1.36 g/cm³ at 20°C. It holds well as a solid at room temperature and doesn’t melt easily, showing a melting point in the range of 59–63°C. The substance rarely forms a true liquid at typical laboratory temperatures, but with enough heat or solvent presence, you can find it in solution. Its appearance shifts depending on purity and storage conditions, ranging from pearly crystals to finely milled powder. Di-2-Thienylglycolic Acid Methyl Ester resists easy reaction with water. The ester structure, protected by its methyl group, doesn’t hydrolyze quickly, so accidental spills on damp surfaces don’t turn disastrous in a hurry, but you still want gloves and goggles during handling.
Structurally, the two thiophene rings give significant aromatic character, which means the molecule pulls in electrons and can stabilize charge. From my time working with sulfur-containing compounds, I often noticed their peculiar odors and how they interact with both organic and aqueous solvents. This ester favors organic solvents like dichloromethane, ether, or acetone, and rarely offers much solubility in plain water. Examining the crystallography under basic lab microscopes, you witness sharp-edged crystals, confirming its stable solid-state at room temperature.
Chemists and purchasing teams look at several specifications: purity level (most labs require at least 98%), particle size distribution (important for blending or reactions), and color (consistent off-white or pale yellow tones signal fewer impurities). Moisture content remains low — moisture above 0.5% could suggest careless storage or degraded stock. The compound rather resists breakdown under standard laboratory light but should stay out of direct UV, which could prompt slight chemical rearrangements or yellowing. At scale, batch certifications—checked by analytical techniques such as NMR, HPLC, and IR—support claimed purity levels, giving confidence before pouring the substance into a beaker or blending into a reaction mix.
International trade of this chemical centers around its compliance with customs and regulatory norms. Under the Harmonized System (HS) Code, Di-2-Thienylglycolic Acid Methyl Ester falls under 29349990, which pertains to other heterocyclic compounds. Navigating imports and exports, this code ensures the right duties, taxes, and paperwork accompany each shipment, smoothing the process while avoiding hefty penalties that sometimes catch inattentive buyers off guard.
Anyone handling Di-2-Thienylglycolic Acid Methyl Ester needs real information. The compound does not explode on minor contact, but its powder presents inhalation risk, a fact I learned well after several afternoons hunched over an open flask. Direct skin contact with the raw material may cause irritation, sometimes leaving mild rashes or dryness. Hazard labels rank this chemical as a harmful irritant, making gloves and fume hoods a must in most labs or processing facilities. Eye protection sidesteps accidental splashes or dust clouds. Its toxicity profile doesn’t rise to the worst of the group, but MSDS sheets point out possible organ irritation and long-term effects if mishandled. Disposal practices follow standard organic chemical protocols: don’t toss down the drain, collect chemical waste, and avoid open air release.
This methyl ester serves well as a synthetic intermediate, a raw material in fine chemical and pharmaceutical research. Thiophene-derivatives often show up in older and newer projects for advanced electronic materials, drug leads, or specialty solvent systems. In my own experience, sourcing reliable batches prevents downtime and backs up larger synthesis campaigns. Down the supply chain, its quality affects the yield and purity of finished products, especially in applications targeting high-end electronics or complex drug precursors. Because small impurities can derail subsequent steps or contaminate catalysts, strict control over the raw materials matters far beyond just cost. Discussions with procurement experts echo the need for traceability and supplier transparency to protect both workers and finished product goals.
Real-life storage means keeping this compound cool, in the dark, inside airtight containers with strong labels. Silica gel packets or dry cabinets help preserve the powder or flakes, preventing moisture or air oxidation. Old stock, especially when left open, shows caking or subtle color change, both signs that decomposition may start. During transport, the right packaging stops dust escape and reduces exposure to excessive heat or bright light. In bustling labs or warehouse environments, regular safety checks, solid training, and good ventilation make the real difference between safe handling and accident headlines.
Knowledge and firsthand experience of Di-2-Thienylglycolic Acid Methyl Ester’s properties, hazards, and role in research and production circles keeps the conversation honest around chemical safety and value. Solutions always start with solid information, user education, and transparent supply chains. This substance, like countless others, proves the point that those basic protocols never grow old or useless in chemical science and industry.
