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L-DOPA (Levodopa) ≥99% — chemical reagent for laboratory, research and analytical use. Not for human or animal consumption.
WARNING: Chemical reagent intended solely for laboratory, research and analytical purposes. NOT FOR HUMAN OR ANIMAL CONSUMPTION. It is not a medicinal product, dietary supplement or food.
Hemantan (also known as Hemantane, Hymantane and Gimantan) is a research compound belonging to the class of adamantane derivatives — polycyclic hydrocarbons characterised by the distinctive cage-like adamantane skeleton. Structurally, it is related to other adamantane research compounds developed within Russian scientific institutions, including bromantane and ladasten. This substance appears primarily in scientific literature originating from the Russian research domain and remains a compound with limited data availability in international chemical databases.
Owing to its status as a niche, rare research chemical, several of its physicochemical parameters do not have unambiguously confirmed, publicly verified values. In the table below such fields are deliberately marked, so as not to misrepresent the analytical data.
| Systematic name | no confirmed public data |
| Synonyms | Hemantane, Hymantane, Gimantan |
| CAS number | no confirmed public data |
| Molecular formula | no confirmed public data |
| Molar mass | no confirmed public data |
| Appearance | no confirmed public data (typically a powder / crystalline solid) |
| Solubility | no confirmed public data |
| Purity | as per the specification of the given batch (Certificate of Analysis) |
Hemantan is classified within the adamantane family of compounds, in which the adamantane skeleton (a saturated tricyclic hydrocarbon) forms the core that confers considerable conformational rigidity and lipophilicity on the molecule. This type of core is exploited in medicinal chemistry and in studies of the structure and properties of polycyclic compounds. In the scientific literature, Hemantan is discussed in the context of research conducted on a group of adamantane analogues that also includes bromantane and ladasten.
The substance is offered as a compound for advanced laboratory research — intended for chemical analysis, reference work, validation of analytical methods and in vitro experiments carried out by qualified personnel under laboratory conditions. Given the limited number of peer-reviewed publications and the absence of a full, confirmed physicochemical characterisation in widely available databases, it is recommended that the identity and purity of the material be independently verified by instrumental methods (e.g. NMR, LC-MS, HPLC) on the basis of the Certificate of Analysis provided for the specific batch.
The product is not intended for any diagnostic, therapeutic or consumer application. Responsibility for the lawful and safe use of the reagent rests with the purchaser acting as a research entity.