Catharanthine (Vinca Precursor Indole Alkaloid · Informational)
Compiled from published pharmacological and botanical literature. Not independently verified by Herbuno. Spotted an error or have a correction? Flag it below →
| Compound | Catharanthine |
| Chemical class | Alkaloid — Indole (monoterpenoid indole alkaloid; iboga-type monomer) |
| CAS | 2468-21-5 |
| Primary source | Catharanthus roseus (Madagascar periwinkle), leaves |
| Key applications | Biosynthetic monomer precursor to vinblastine/vincristine; informational-only |
| Claim strength | High (pharmaceutical precursor) |
| Typical form | Pharmaceutical raw material (semisynthesis feedstock); not a supplement ingredient |
| Buy from Herbuno | Informational reference — see HerbIQ Compound Index → |
Name origin: Catharanthine is named directly for Catharanthus roseus, the Madagascar periwinkle, and it is a monoterpenoid indole alkaloid of the iboga structural type — the same broad family as ibogaine, though its industrial significance lies elsewhere. It is one of the two monomer halves of the dimeric vinca alkaloids, complementary to vindoline. Traditional use: Madagascar periwinkle was employed in folk medicine, most famously as a putative treatment for diabetes, and it was the investigation of that reputation in the mid-twentieth century that unexpectedly uncovered the plant’s antimitotic bisindole alkaloids. Catharanthine has no independent traditional identity; its importance is entirely as a building block of the drugs that emerged from that research. Research trajectory: Catharanthine and vindoline couple to form anhydrovinblastine and then vinblastine and vincristine. Because the intact dimers are vanishingly scarce in the plant, the world supply of these chemotherapeutics depends on isolating the two precursors and coupling them chemically, a supply chain analysed in detail in work demonstrating a microbial route to the precursors Zhang 2022. The biosynthesis of catharanthine from the central intermediate strictosidine has been mapped enzyme by enzyme, and the pathway reconstituted in engineered yeast Liscombe 2011. Commercial source: Catharanthine is a pharmaceutical raw material rather than a botanical ingredient, and it is included in HerbIQ as a biosynthesis and chemical-family reference.
Evidence for Catharanthine Applications
Vinca-alkaloid precursor: Catharanthine is one of the two monomers whose coupling yields the anticancer bisindole alkaloids, and the global supply of vinblastine depends on isolating these precursors and joining them chemically, a dependence that has driven the search for alternative production routes Zhang 2022. Its role is structural and industrial rather than directly therapeutic. Claim strength: High (pharmaceutical precursor).
Biosynthesis: Catharanthine is formed through a defined enzymatic sequence from strictosidine, the universal monoterpenoid indole alkaloid precursor; the pathway has been characterised and reconstituted in engineered yeast alongside vindoline, offering a route to more reliable precursor supply independent of plant cultivation Liscombe 2011. Claim strength: High.
Supply-chain interest: The very low natural abundance of the vinca dimers makes catharanthine a focus of sustained metabolic-engineering effort aimed at securing chemotherapy-drug supply, since periwinkle extraction alone yields the final drugs at only 0.0003–0.01% of leaf dry weight Zhang 2022. Claim strength: Moderate.
Structural class: As an iboga-type monoterpenoid indole alkaloid, catharanthine is also of interest for the broader chemistry of this alkaloid family and for total-synthesis methodology targeting the vinca dimers. Claim strength: Emerging.
Leaf localisation: Catharanthine accumulates in the aerial tissues of Catharanthus roseus, and its tissue-specific biosynthesis and storage are part of why cell-suspension and hairy-root cultures have historically struggled to reproduce the plant’s full alkaloid output — a constraint that heterologous microbial systems are designed to sidestep. Claim strength: Emerging.
This compound is documented for research and formulator education purposes. For commercially available botanical ingredients, explore the HerbIQ Compound Index →
Dosage & Formulator Specification
Catharanthine is a pharmaceutical precursor with no dietary-supplement application and no consumer dosing. It functions as a semisynthesis feedstock for vinca-alkaloid manufacture and is handled under pharmaceutical-manufacturing controls rather than as an ingredient.
Catharanthus roseus herb contains the cytotoxic vinca alkaloids and is not a food-safe supplement botanical; formulators should regard periwinkle leaf material as a pharmaceutical feedstock, not a standardised extract candidate. There is no supplement-grade catharanthine application, and this boundary is categorical rather than a matter of grade or purity.
Commercially, catharanthine is obtained by extraction from periwinkle leaves and purified to a specification suitable for chemical coupling, with analytical control by HPLC against reference standards. Engineered microbial biosynthesis is an emerging alternative supply route that, if scaled, would decouple precursor supply from agricultural variability — a significant consideration given how scarce the downstream dimers are in the plant.
It is worth underlining why catharanthine cannot simply be treated as a botanical extract despite being plant-derived. The compound is a direct chemical precursor to cytotoxic chemotherapy drugs, and any material enriched in it carries the regulatory character of a pharmaceutical intermediate rather than a food or supplement input. This is the same logic that places vindoline, vinblastine, and vincristine outside the standardised-botanical catalogue, and it is why the whole periwinkle alkaloid group is documented in HerbIQ as a chemical-family reference cluster rather than as sourceable ingredients.
For the formulator, the practical takeaway is a clean boundary: catharanthine belongs to the regulated pharmaceutical supply chain for vinca alkaloids, not to the standardised-botanical catalogue. This monograph documents the compound so its relationship to vindoline, vinblastine, and vincristine elsewhere in HerbIQ is clear, without implying any sourcing pathway.
Frequently Asked Questions — Catharanthine
What is catharanthine?
Catharanthine is a monoterpenoid indole alkaloid of the iboga structural type, produced in the leaves of Catharanthus roseus (Madagascar periwinkle). It is one of the two monomer precursors that couple together to form the anticancer bisindole alkaloids vinblastine and vincristine, and it is a pharmaceutical raw material rather than a supplement ingredient.
Why does catharanthine matter industrially?
Because the intact vinca dimers occur at only trace levels in the plant, the pharmaceutical supply chain isolates the far more abundant monomer precursors catharanthine and vindoline and couples them chemically to anhydrovinblastine, which is then converted to vinblastine and vincristine. Catharanthine is therefore a key feedstock for the entire vinca-alkaloid manufacturing route.
Is catharanthine a supplement ingredient?
No. It is a pharmaceutical precursor with no dietary-supplement or food application. HerbIQ documents it as a chemical-family and biosynthesis reference within the vinca-alkaloid story, not as a sourceable ingredient.
How is catharanthine produced?
It is extracted from Catharanthus roseus leaves, and because plant yields are limiting, engineered yeast and other heterologous hosts have been developed to biosynthesise catharanthine and vindoline de novo, offering a potential alternative to plant extraction for securing precursor supply.
Related compounds: Vindoline, Vinblastine, Vincristine, Serpentine
Claim-strength scale – High = multiple human RCTs; Moderate = limited trials or strong preclinical convergence; Emerging = early-stage lab or animal data.
← HerbIQ Compound Index · HerbIQ P02: Extraction · HerbIQ P03: Delivery