C20H26O4 · MW ≈ 330.42 · CAS 39986-26-0 · non-intoxicating raw acid · acid of THCV · decarboxylates to THCV (~110–130 °C) · from the varin mother acid CBGVA
40 questions are answered here. 23 carry a verified grade on the six-rung evidence ladder. 13 are marked with an evidence state rather than a rung — most often no primary evidence, which means our registry holds nothing on that question. That is not the same claim as not supported, and we do not render it as one. The remaining 4 carry an author qualifier that is not yet part of the controlled vocabulary, so they are shown without a grade chip rather than with a guessed one — catalogue in progress.
Verified science — what THCVA *is*, its formula/CAS, how it forms, that it decarboxylates to THCV, and that the raw acid is non-intoxicating — is stated as fact with a grade. Any effect or benefit is **reported as a third-party claim** and paired with the honest limit; **CBG Atlas does not make, adopt, or affirm these claims**. Where evidence is thin we say "catalogue in progress." Not medical or legal advice.
THCVA (tetrahydrocannabivarinic acid) is the raw, non-intoxicating acid form of THCV, found in living cannabis. On heating, THCVA loses CO₂ to become THCV. That chemistry is Established. THCVA's own effects in people are a separate matter: no controlled human study of THCVA has been published, so this is untested rather than tested-and-null, and everything past the chemistry is catalogue in progress.
THCVA stands for tetrahydrocannabivarinic acid — the carboxylic-acid ("-ic acid") precursor of tetrahydrocannabivarin (THCV), which is itself the varin (propyl-side-chain) homolog of THC. The "A" marks the carboxyl group the living plant makes first, before heat converts it. Its formula is C20H26O4, CAS 39986-26-0. The name describes chemistry, and that chemistry is Established.
THCVA is built on the varin branch of cannabinoid biosynthesis: the varin "mother acid" CBGVA is converted by a synthase enzyme into THCVA (parallel to how CBGA yields THCA in the main line). Heating THCVA then decarboxylates it to THCV.
Yes. THCVA is a naturally occurring cannabinoid acid present in raw, unheated cannabis — especially certain varin-rich chemotypes. It is the form the living plant actually makes; the neutral THCV appears mainly after plant material is heated, dried, or aged over time.
No. In its raw acid form THCVA is non-intoxicating — cannabinoid acids do not activate the CB1 receptor the way THC does. Only after heating (decarboxylation) does it become THCV, and even THCV is not straightforwardly intoxicating at low doses.
THCVA itself is not known to be intoxicating. Whether the raw acid has any subtle psychoactive effect is unstudied — no verified human data exist. Its heated product THCV has dose-dependent receptor effects, but that is a different molecule. Catalogue in progress.
Raw THCVA's effects in the body are not established. The one verified in-vitro handle for cannabinoid acids as a class is inhibition of the enzyme DAGLα (De Petrocellis 2011, PMID 21175579) — a cell-level finding, not a human effect. Catalogue in progress.
Unheated, THCVA is a non-intoxicating acid; it is not known to produce THCV-like effects without decarboxylation. Some "raw cannabinoid" interest exists, but THCVA-specific activity in people is unverified (not medical advice). To form active THCV, heat is required. Catalogue in progress.
It depends on where you are — THCVA's status is genuinely jurisdiction-dependent. The key wrinkle is that THCVA decarboxylates to THCV, so "total-THC" style rules can classify it differently from non-THC cannabinoids, and a product lawful under one reading may not be under another. This is a general, dated snapshot (2026-07-11), not legal advice — verify locally before relying on it.
Generally yes so far, but that may be changing. In the US, hemp-derived THCVA in products at or below 0.3% Δ⁹-THC by dry weight has generally fallen under the 2018 Farm Bill. An upcoming "total THC" redefinition (P.L. 119-37, in force from Nov 12, 2026) may capture THCVA and THCV differently, so the answer is time-sensitive rather than settled. Dated 2026-07-11; general information, not legal advice.
THCVA's status depends on your state, and we cannot determine that for you here. US state laws vary and some are stricter than federal rules, particularly for THC-adjacent compounds. THCVA is rarely named directly in statute, so it usually inherits your state's hemp and "total-THC" definitions. Check your current state statute, or ask a qualified attorney. Dated 2026-07-11; informational only, not legal advice.
Generally no — not as a food or supplement you can freely sell. The UK and EU classify extracted cannabinoids as novel foods needing authorisation, and THCVA is not specifically authorised; Canada regulates cannabis-derived acids under the Cannabis Act, where THC-related compounds face tighter control. Rules change often, so verify the current national position before relying on this. Dated 2026-07-11; general information, not legal advice.
None are established. THCVA has no verified human or preclinical evidence for any benefit. It is sometimes marketed within "raw cannabinoid" products, but such benefit claims are unproven and not affirmed by CBG Atlas (not medical advice). Catalogue in progress.
THCVA is used mainly as a raw-cannabinoid or "full-spectrum" component and as a research/reference compound; it has no established therapeutic use. Any wellness positioning is marketing, not evidence (not medical advice). Its main practical role is as the precursor that becomes THCV. Catalogue in progress.
Not established. THCV has shown appetite-related signals in early preclinical (animal) research, but that is THCV — not raw THCVA — and even for THCV it is not proven in humans. Proponents may claim it; no verified evidence supports THCVA doing so (not medical advice).
No. There are no known controlled human trials of THCVA. Verified data are limited to in-vitro observations for cannabinoid acids as a class (e.g., DAGLα inhibition, De Petrocellis 2011, PMID 21175579). THCVA's own human safety and efficacy remain unstudied — catalogue in progress.
THCVA's safety is not established — there are no human safety studies of THCVA, no defined dose, and no long-term data. Untested is the honest word: nobody has looked, so this is an open question rather than a clean bill of health, and being a non-intoxicating acid does not mean proven safe. Consult a qualified professional before use, especially alongside medications. Catalogue in progress. (Not medical advice.)
THCVA's side-effect profile is unknown; no controlled studies document its adverse effects. Absence of data isn't evidence of safety, and products may contain other cannabinoids or contaminants. Stop use and seek advice if you feel unwell (not medical advice). Catalogue in progress.
No safe or effective THCVA dose has been established, so "too much" cannot be defined from evidence, and no overdose data exist. As with any unstudied compound, more is not better. This is not dosing or medical advice. Catalogue in progress.
THCVA-specific drug-interaction data do not exist. As a general caution, cannabinoids can affect drug-metabolizing enzymes, so interactions are plausible but unverified for THCVA. If you take any medication, consult a clinician or pharmacist before use (not medical advice). Catalogue in progress.
Possibly. Standard tests target THC's metabolite, not THCVA — but THCVA can decarboxylate to THCV, which is structurally close to THC, so cross-reactivity on some immunoassays is possible, and hemp products may carry trace THC. If testing matters, be cautious and use COA-verified products.
THCVA is not THC — they are different molecules, and pure THCVA contains no THC. However, THCVA decarboxylates to THCV (the varin of THC), and hemp-derived products can contain trace Δ⁹-THC unless made from isolate. Check the product's certificate of analysis (COA) for actual THC.
Possibly — THCVA is not the direct target of drug tests, but its conversion to THCV, plus any trace THC already in a product, could contribute to a positive or cross-reactive result. THCVA-specific cross-reactivity has not been characterised, so this is a plausible risk rather than a measured one. If you are drug-tested, avoid the uncertainty and choose products with a COA showing non-detectable THC.
THCVA appears mostly in raw-cannabinoid tinctures, "full-spectrum" extracts, or fresh/unheated plant preparations, since heating converts it to THCV. It can also be a reference isolate. These are format descriptions only — THCVA has no studied route or dose (not medical advice).
THCVA is rare, so products are limited — some raw or full-spectrum hemp extracts, varin-focused blends, and reference isolates for laboratories. Standalone high-THCVA consumer products are uncommon, and heating any product converts THCVA to THCV. Potency and purity vary, so a third-party COA is important.
There is no established dose for THCVA. No clinical studies define a safe or effective amount, so CBG Atlas gives no dosing guidance. Any label amount reflects manufacturer choice, not evidence. Consult a qualified professional (not medical or dosing advice). Catalogue in progress.
To become THCV, yes — THCVA must be heated (decarboxylated) to drive off CO₂. Raw THCVA stays a non-intoxicating acid. If a product is meant to deliver THCV effects, it must be decarboxylated; if kept raw, it remains THCVA. Its raw activity is unstudied.
THCVA is the raw plant acid; THCV is its heated, decarboxylated (neutral) form. THCVA is non-intoxicating and barely studied; THCV has dose-dependent receptor activity and more research behind it. Chemically they differ by a single carboxyl group, lost as CO₂ when THCVA is heated.
Both are non-intoxicating cannabinoid acids that decarboxylate on heating, but THCVA is the varin (propyl) acid that yields THCV, while THCA is the pentyl acid that yields Δ⁹-THC. THCA→THC is intoxicating after heating; THCVA→THCV is not straightforwardly so. Different side chains, different products.
THCVA, CBGVA, and CBDVA are the three varin (propyl) acids. CBGVA is the shared "mother acid"; it branches into THCVA (→THCV) and CBDVA (→CBDV). They share the varin scaffold and non-intoxicating raw status, differing in which neutral cannabinoid they become.
"Raw" means the acid (THCVA) is intact and non-intoxicating; "decarbed" means heat has converted it to neutral THCV. They are chemically different, and only decarbed material yields THCV's effects. Neither raw THCVA nor THCV is a proven treatment (not medical advice).
THCVA's molecular formula is C20H26O4 (molecular weight ≈ 330.42 g/mol), CAS 39986-26-0. Structurally, THCVA is the carboxylic-acid precursor of THCV (C19H26O2) and the varin (propyl) analog of THCA, carrying a carboxyl group that neutral THCV lacks. Heating removes that group as CO₂ to give THCV. This chemical identity is Established; THCVA's biological effects are a separate, largely unstudied question.
THCVA is obtained from raw, unheated varin-rich cannabis using gentle extraction that avoids heat (which would convert it to THCV), then purified chromatographically. Because heat destroys it and plants make little, isolating stable THCVA is difficult. Its chemistry is established.
Yes. In biosynthesis, the varin "mother acid" CBGVA is the precursor, and a synthase enzyme converts it into THCVA (one branch), just as CBGA yields THCA in the pentyl line. The specific varin synthases are less fully characterized — catalogue in progress for that step.
THCVA decarboxylates to THCV in roughly the 110–130 °C range, like other cannabinoid acids — gentle heat over time drives off CO₂. Hotter (150–160 °C) is faster but risks degradation. Compound-specific THCVA kinetics are less published than the pentyl acids (Wang 2016) — catalogue in progress.
THCVA is sold by a small number of specialty hemp/cannabinoid retailers and reference-chemical suppliers, usually as raw-cannabinoid extracts or reference isolates. It is niche and inconsistently stocked. CBG Atlas endorses no specific brand — buy only from vendors that publish third-party lab results.
THCVA occurs only in specific varin-rich chemotypes and in small amounts, and it converts to THCV with heat, so isolating stable THCVA is low-yield and technically demanding. Cold handling, cold storage, and extra purification all add cost. Scarcity plus specialised handling is what makes THCVA rare and expensive next to common cannabinoids like CBD — scarcity is a supply fact, not a sign of potency.
Request a current certificate of analysis (COA) from an accredited third-party lab confirming THCVA content, showing the THC level, and screening for pesticides, solvents, and heavy metals. Because THCVA can convert to THCV, the THC/THCV figures matter especially. No COA is a red flag.
That is your call, and the honest input is this: THCVA has no established benefit and has never been tested in a controlled human trial, so any value is speculative rather than evidence-based — untested, not tested-and-rejected. Catalogue in progress. If you do try it, prioritise lab-tested products, understand that THCVA converts to THCV on heating, and keep expectations proportionate to the evidence. (Not medical advice.)
Look for a third-party COA matching the label, THC compliance (and clear THCV/THC figures given the acid converts on heating), contaminant screening, and transparent sourcing. Be skeptical of appetite or other health claims — none are verified for THCVA (not medical advice).
CBG Atlas is a scientific reference. Nothing here diagnoses, treats, cures or prevents any disease. Statements about effects, benefits or uses reflect claims made by third parties — CBG Atlas does not make, adopt or affirm them. Legal status is scoped to jurisdiction, product class and date, and moves; verify against the official source. See how we grade and the safety page. Peregrine Biopharma funds the platform and holds no editorial authority.