D-Tartaric Acid Diiso-Propyl Ester is a specialized chemical that brings together the chiral backbone of D-tartaric acid and the branched hydrocarbon notes of isopropyl groups. Many chemical workers know it as a substance used to create asymmetric syntheses and support the production of enantiomerically pure compounds. The blend of organic complexity and neat appearance sets it apart in fine chemical lines, and the unique ester configuration helps deliver both chemical stability and useful reactivity for those doing serious lab or scale-up work.
This ester’s structure features two isopropyl groups bonded to the carboxyl ends of tartaric acid, leaving a central, chiral backbone. Molecular formula: C10H18O6. Molecular weight approaches 234.25 g/mol. A closer look at the solid reveals off-white, sometimes slightly yellow flakes, although it's found as fine powder or crystalline pearls in certain supply chains. Under the light, the surface glistens, hinting at those tightly packed, consistent molecular arrangements. Melting points hover around 40–47°C, which makes it easy to melt or resolidify as needed. Some forms, especially at warmer ambient temps, begin to display a syrupy liquid state—this helps with quick dilation into solution form or direct dosing to a reaction. Densities tend to cluster around 1.18–1.22 g/cm³, with slight variation based on purity and batch moisture content.
Pure D-Tartaric Acid Diiso-Propyl Ester turns up as a non-hygroscopic, free-flowing material. Hydroxyl and carboxyl functional groups have transformed into esters, which limits unwanted reactivity and unwanted water uptake. Most technical grade supplies come with purity above 98%, and show low acid values—usually less than 1 mg KOH/g. Such narrow spec windows ensure reliable performance whether running small-batch pharmaceutical synthesis, testing pilot routes, or doing column separations and resolutions. In solid or liquid delivery, the product shines due to its high enantiomeric excess, low trace metals, and freedom from hazardous impurities like benzene, methanol, or heavy metals. For those scaling up, viscosity measures can help anticipate pump performance—low for the ester in melted or dissolved form.
Most handlers see the ester as flakes, pearlized solids, or light powders in common packaging—HDPE drums or bags when available. Visual inspection shows uniform size; products free-flow across benchtop scales, raising minimal dust. Tighter density makes it easy to stack for storage, and the powder compresses well without caking from moisture. In some factories, I’ve received this ester freshly recrystallized, where transparency and purity leap out even more. For vendors that specialize in fine chemicals, D-Tartaric Acid Diiso-Propyl Ester also comes as a solution in organic solvent to fit process requirements fast, sidestepping solubility hurdles on site.
Each batch comes tagged by molecular formula (C10H18O6) and, on paperwork, full compliance with HS Code: 2918199090—putting it in line with other organic esters in customs records. The structure and identity confirmed by NMR, GC-MS, and sometimes optical rotation, keeps counterfeiting at bay. Its specific rotation makes it a chiral selector and a raw material of choice for stereospecific manufacturing. Anyone who’s dealt with chiral separations knows that these physical and molecular markers can save hours in troubleshooting and yield calculation.
Density sits in the 1.18–1.22 g/cm³ sweet spot, and does not diverge sharply between solid and liquid (at full melt), which makes dosing both by mass and by liter a straightforward process. Low water solubility gives it an advantage when layering in biphasic reactions—users don’t have to worry about runaway hydrolysis or phase miscibility. Solubility climbs fast in common organic solvents, like methanol, ethanol, acetone, and ethyl acetate. The mixed hydrocarbon segments from the isopropyl groups cushion the molecule’s reactivity, making the ester shelf-stable for regular storage and use.
On safety datasheets, D-Tartaric Acid Diiso-Propyl Ester counts as a low-to-moderate risk material. Spills or skin contact don’t typically result in major injury, though long exposures to neat material can lead to mild dermatitis or eye irritation. Volatility remains low, so inhalation risk only rises during elevated temperature operations or powder handling without proper ventilation. This ester does not produce persistent biohazardous waste—disposal tracks through regular chemical-waste streams, aligning with standard hydrolyzable esters. Combustibility classes as ordinary organic; hazards come from rapid heating or contact with strong oxidizers, not from inherent toxicology. Engrained habits—gloves, goggles, regular ventilation—keep lab personnel safe and the ester secure from accidental degradation.
I’ve watched teams lean on D-Tartaric Acid Diiso-Propyl Ester to keep resolution processes crisp in pharmaceutical and agrochemical settings. The chiral control it offers proves vital for those aiming to deliver only the right-handed enantiomer of a target drug. Suppliers market it both as a high-purity raw input for chemical synthesis and as an intermediate. Its function as a building block gives downstream products predictability in column chromatography and stereoselective catalysis.
Reliable sourcing ties back to paperwork: full certificate of analysis, batch dates, and purity guarantees. Contact with documented, trustworthy suppliers pays off, as some low-grade material may carry unwanted byproducts—always scan for signals like off-odors, excess fines, or unusually low melting points that signal out-of-spec batches. Packaging merits attention: fresh, moisture-tight packaging keeps the material in peak form for months. Long experience on procurement teams says: don’t be swayed by generic suppliers who shy away from specs; a little diligence brings big returns in final yield and safety. Consistent review of the HS Code on customs documents will keep the legal gears in pace for smooth imports or exports, and a close eye on density readings and melting points at arrival allows rapid verification with minimal downtime.
| Property | Description |
|---|---|
| Molecular Formula | C10H18O6 |
| HS Code | 2918199090 |
| Molecular Weight | 234.25 g/mol |
| Physical Form | Flakes, powder, pearls, solid, sometimes syrup-like liquid |
| Color | White to off-white |
| Melting Point | 40–47°C |
| Density | 1.18–1.22 g/cm³ |
| Solubility | Soluble in many organics, low water solubility |
| Application | Chiral synthesis, raw material for fine chemicals |
| Hazard | Low, standard handling required |
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