TCI D5693 Dihydro Finasteride is an azasteroid derivative closely related to finasteride, supplied by TCI as a research and analytical chemical. The compound belongs to the group of related substances of the active ingredient finasteride, which means its role in the laboratory is generally not as a raw material for bulk synthesis but rather as a reference and test material. The availability of compounds of this kind matters greatly to pharmaceutical analysis laboratories, because identifying and separating compounds whose structures are very similar to the active ingredient forms an essential part of quality assessment and analytical method development.
The characteristic that makes this product necessary is its structural specificity. Because its skeleton is almost identical to that of finasteride and differs only in the degree of saturation, the compound produces chromatographic behaviour and mass spectral patterns that lie very close to those of the parent compound. That very condition makes it an extremely useful material for challenging method selectivity, confirming that analytical peaks are genuinely resolved, and verifying that the instrument system is capable of distinguishing the analyte from closely related species. Rather than being a limitation, this near-identity is precisely the property that gives the material its analytical value.
In Indonesian laboratories, materials of this type are typically used in pharmaceutical quality control units, analytical method development groups, university research laboratories, and testing facilities that work with finasteride-based preparations. They are usually handled in small quantities as comparison standards within established analytical procedures, supporting routine verification work as well as method validation studies. Because the compound is intended for research and analytical purposes, it is normally requested and consumed in modest amounts alongside the corresponding parent substance.
- Analytical method selectivity testing, where the compound's near-identical structure to finasteride provides a demanding challenge that proves a method can truly discriminate closely related species.
- Chromatographic resolution verification, since its retention behaviour lies very close to the parent compound and therefore confirms whether analytical peaks are genuinely separated rather than merely appearing so.
- Related-substance identification in pharmaceutical quality assessment, because the material serves as a defined comparison substance for recognising this specific finasteride-related compound in test samples.
- Mass spectrometric method verification, as its spectral pattern closely resembles that of finasteride and allows analysts to confirm that instrument systems distinguish structurally similar analytes correctly.
- Analytical method development and validation studies, where a structurally adjacent reference material is required to demonstrate specificity and robustness of newly established laboratory procedures.
| Brand | TCI |
|---|---|
| CAS number | 98319-24-5 |
| Molecular formula | — |
| Purity | — |
| Category | TCI |
| Pack sizes | available in small research and analytical quantities; please confirm the currently offered packaging when ordering. |
| Physical form | — |
| Storage | keep in the tightly closed original container under the storage conditions stated by the manufacturer on the product label. |
- Product Code: D5693
Store the material in its tightly closed original container, kept in a cool, dry, and well-ventilated area away from direct sunlight, moisture, and incompatible chemicals, and follow the specific storage conditions indicated by the manufacturer on the label and safety data sheet. Use clean, chemically compatible, and clearly labelled containers when transferring portions for analytical work, and avoid contamination that could compromise its use as a comparison material. Handle only in a properly ventilated laboratory area while wearing appropriate personal protective equipment, including gloves, safety glasses, and a laboratory coat. Because the compound is intended solely for research and analytical purposes, it should be handled by trained personnel, recorded in laboratory inventory, and disposed of in accordance with applicable institutional and local chemical waste regulations.
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