Comprehensive research resource on 7-hydroxymitragynine chemical structure, extraction methods, purity standards, and laboratory testing protocols for botanical research applications.
Definition: 7-Hydroxymitragynine (7-OH) is an indole-based alkaloid found naturally in the leaves of Mitragyna speciosa (kratom). It is one of over 40 alkaloids present in kratom, but is found in significantly lower concentrations than mitragynine.
7-Hydroxymitragynine is found naturally in fresh and dried Mitragyna speciosa leaves, typically comprising approximately 0.01-0.04% of the total leaf alkaloid content. By comparison, mitragynine—the primary alkaloid—makes up roughly 66% of total alkaloids in most kratom strains.
The extremely low natural concentration of 7-OH in kratom leaves necessitates either extensive plant material processing or semi-synthetic conversion from mitragynine to obtain research-grade quantities. This scarcity, combined with growing research interest, has driven the development of specialized extraction and synthesis protocols.
7-Hydroxymitragynine was first isolated and characterized in 1994 by Japanese researchers studying the alkaloid composition of Mitragyna speciosa. Initial analytical work used advanced chromatography techniques to separate and identify this trace compound among kratom's complex alkaloid profile.
Subsequent phytochemical research has focused on understanding its biosynthesis in the plant, optimizing extraction methods, and developing analytical protocols for identification and quantification in botanical specimens.
7-Hydroxymitragynine is sold exclusively as a botanical research specimen for scientific study. Research applications include:
7-Hydroxymitragynine products are sold strictly as botanical research specimens for scientific study only. These products are not intended for human or animal consumption. This compound is not approved by the FDA for any medical use, and no medical claims are made about 7-OH products. Researchers must comply with all applicable local, state, and federal regulations.
7-Hydroxymitragynine is structurally classified as an indole alkaloid with a complex polycyclic framework. The compound features:
7-Hydroxymitragynine and mitragynine are structurally similar alkaloids that differ primarily by a single hydroxyl group. Key differences:
| Property | Mitragynine | 7-Hydroxymitragynine |
|---|---|---|
| Molecular Formula | C23H30N2O4 | C23H30N2O5 |
| Molecular Weight | 398.50 g/mol | 414.50 g/mol |
| Natural Abundance | ~66% of leaf alkaloids | ~0.01-0.04% of leaf alkaloids |
| C-7 Substituent | Hydrogen (H) | Hydroxyl (OH) |
Pure 7-hydroxymitragynine exhibits the following physical characteristics:
Due to the extremely low natural concentration of 7-hydroxymitragynine in Mitragyna speciosa leaves (0.01-0.04%), obtaining research-grade 7-OH requires either large-scale botanical extraction or semi-synthetic conversion. Both approaches require sophisticated laboratory equipment and expertise.
This method involves isolating 7-OH directly from kratom leaf material using sequential extraction and purification steps.
Challenge: This method requires processing massive quantities of plant material. Extracting 1 gram of pure 7-OH may require 5-10 kilograms of dried kratom leaves, making it economically impractical for large-scale production.
A more efficient approach involves oxidizing mitragynine (abundant in kratom) to produce 7-hydroxymitragynine through selective hydroxylation at the C-7 position.
This approach offers higher yields and requires less plant material, but demands precise control of reaction conditions to avoid over-oxidation or formation of unwanted byproducts.
Regardless of extraction method, multiple analytical checkpoints ensure product quality:
Research-grade 7-hydroxymitragynine requires comprehensive analytical testing to verify identity, purity, and safety. At 7oh.gg, every batch undergoes rigorous third-party laboratory analysis before release.
Purpose: Quantitative analysis of 7-OH content and alkaloid profiling
What it measures: Confirms 7-OH concentration (%), identifies related alkaloids (mitragynine, speciogynine, paynantheine), detects process impurities
Purpose: Structural confirmation and trace impurity detection
What it measures: Molecular weight confirmation (414.50 g/mol), fragmentation pattern analysis, detection of structurally similar impurities at <0.1%
Purpose: Safety testing for toxic metal contamination
What it measures: Lead (Pb), mercury (Hg), cadmium (Cd), arsenic (As), and other heavy metals. All results must meet USP <232> limits.
Purpose: Ensures absence of harmful bacteria, yeast, and mold
What it measures: Total aerobic microbial count (TAMC), total yeast and mold count (TYMC), pathogen screening (E. coli, Salmonella, Staphylococcus aureus)
7-Hydroxymitragynine is available in different purity grades for various research applications:
| Grade | Purity Range | Typical Applications |
|---|---|---|
| Research Grade | ≥95% | General botanical research, alkaloid profiling studies |
| High Purity | ≥98% | Analytical reference standards, precision studies |
| Ultra-Pure | ≥99% | Spectroscopic analysis, method development, structural characterization |
Every batch of 7-hydroxymitragynine from 7oh.gg includes a third-party Certificate of Analysis documenting exact purity, heavy metal screening, microbial testing, and batch-specific identification data. COAs are available for download with every order or upon request.
7-Hydroxymitragynine research specimens are available in multiple formats to accommodate different experimental protocols and research requirements. Each format undergoes identical purity testing but offers distinct handling and measurement advantages.
Format: Pressed tablets with precise 7-OH content per unit
Advantages:
Best for: Studies requiring consistent unit dosing, protocols with repetitive measurements
Browse TabletsFormat: Crystalline or amorphous powder, ≥95% purity
Advantages:
Best for: Analytical method development, spectroscopic analysis, custom formulation research
Browse PowderFormat: Concentrated 7-OH in solution (typically ethanol-based)
Advantages:
Best for: Chromatography standard preparation, liquid dilution studies, rapid workflow integration
Browse ExtractFormat: 7-OH powder in vegetarian cellulose capsules
Advantages:
Best for: Studies requiring enclosed specimens, transport to off-site facilities, reduced handling protocols
Browse CapsulesProper storage is essential to maintain 7-OH purity and stability:
When stored according to guidelines above, 7-hydroxymitragynine maintains ≥95% original purity for 24 months (powder/tablets) or 18 months (liquid extract). Always check COA for batch-specific stability data.
The information below is for educational purposes only and does not constitute legal advice. Researchers are solely responsible for verifying compliance with all applicable federal, state, and local regulations before purchasing or handling 7-hydroxymitragynine.
As of October 2025, 7-hydroxymitragynine is not federally scheduled under the Controlled Substances Act (CSA). It is not listed in Schedule I, II, III, IV, or V by the Drug Enforcement Administration (DEA).
However, the DEA has listed kratom (which contains 7-OH) as a "Drug of Concern" and continues to monitor its use. Researchers should be aware that federal scheduling status may change, and should regularly check DEA announcements.
While 7-OH is not federally controlled, several states and municipalities have enacted their own restrictions. As of October 2025, the following jurisdictions have banned kratom and/or its alkaloids (including 7-hydroxymitragynine):
This list is not exhaustive and laws change frequently. Researchers must independently verify current regulations in their jurisdiction before ordering.
We verify shipping addresses against known restricted jurisdictions and will cancel orders to banned locations. Attempting to bypass shipping restrictions by providing false addresses may result in order cancellation, account termination, and legal reporting.
All 7-hydroxymitragynine products sold by 7oh.gg are strictly for botanical research purposes only. These products are:
All purchasers must be 21 years of age or older. Age verification is required at checkout, and false statements about age will result in order cancellation and potential legal action.
7oh.gg ships only within the United States. International researchers should be aware that kratom alkaloids are controlled in many countries, including:
Lab-tested, research-grade 7-hydroxymitragynine with COA included
Pre-measured tablets for precise, consistent research applications.
Pure crystalline form with maximum flexibility for custom measurements.
Research-grade 7-OH products with third-party Certificates of Analysis. All batches tested for purity, heavy metals, and microbial contamination.
7-Hydroxymitragynine (7-OH) is an indole-based alkaloid found naturally in the leaves of Mitragyna speciosa (kratom). It is one of over 40 alkaloids present in kratom, but is found in significantly lower concentrations than mitragynine. 7-OH is sold as a botanical specimen for research purposes only.
7-Hydroxymitragynine can be extracted from kratom leaves using solvent-based extraction methods, or synthesized through oxidation of mitragynine. Advanced chromatography techniques are used to isolate and purify the compound to research-grade standards. All extraction methods require laboratory-grade equipment and expertise.
Research-grade 7-hydroxymitragynine can be purchased from 7oh.gg. We offer lab-tested 7-OH in multiple formats including tablets, powder, liquid extract, and capsules. All products come with third-party Certificates of Analysis (COA) and are sold as botanical specimens for research purposes only.
The legal status of 7-hydroxymitragynine varies by jurisdiction. In the United States, 7-OH is not federally scheduled, but some states and municipalities have enacted their own restrictions. Researchers are responsible for verifying compliance with local laws before purchasing. 7-OH is sold strictly as a botanical research specimen.
Research-grade 7-hydroxymitragynine should have a minimum purity of 95%, ideally 98%+ for scientific applications. All batches should be third-party tested with accessible Certificates of Analysis showing exact alkaloid content, heavy metal screening, microbial testing, and confirmation of no adulterants or contaminants.
Yes. Every batch of 7-hydroxymitragynine from 7oh.gg includes a third-party Certificate of Analysis documenting exact purity, alkaloid profile, heavy metal screening, and microbial testing. COAs are available for download with every order or can be requested at any time.
All formats contain the same research-grade 7-hydroxymitragynine but differ in form factor. Tablets are pre-measured and pressed, powder is pure crystalline form with maximum flexibility, extract is pre-dissolved in solution for immediate use, and capsules are encapsulated powder for easy handling. Choose based on your research protocol requirements.
Store 7-OH at room temperature (20-25°C) in airtight containers, protected from light and moisture. Use desiccant packs to control humidity. Avoid refrigeration as it can cause moisture condensation. Under proper storage, 7-OH maintains ≥95% purity for 24 months (powder/tablets) or 18 months (liquid extract).
Browse our complete selection of research-grade 7-hydroxymitragynine products. All batches include third-party Certificates of Analysis.
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