What the abbreviation stands for
HHC is the catalogue shorthand for hexahydrocannabinol, a saturated relative of the cannabinoids isolated from hemp.
- Summary formula C21H32O2 with a formula weight of 316.48
- Structurally a dibenzopyran skeleton with a fully saturated terpenoid ring
- Catalogued by analytical suppliers as a reference material, not as a bulk commodity
- Present in plant material only in traces, which is why it is obtained by chemical conversion
One name, two registered substances
The single abbreviation covers a pair of epimers that differ at the carbon in position nine of the ring system.
- 9(R)-hexahydrocannabinol carries registry number 36403-90-4
- 9(S)-hexahydrocannabinol carries registry number 36403-91-5
- Both share the same summary formula and the same formula weight
- A certificate quoting only the letters HHC has not identified the material
- Reference standards of each epimer are catalogued separately by analytical suppliers
Where the material comes from chemically
Hexahydrocannabinol is prepared by hydrogenating the ring double bond of a cannabinoid precursor obtained from hemp.
- Cannabidiol is a common starting point, cyclised before the hydrogenation step
- Hydrogen is added across the double bond of the terpenoid ring over a metal catalyst
- The step creates a new stereocentre, so the product is a mixture of the two epimers
- Catalyst choice and reaction conditions govern which epimer dominates
- The result is described as semi-synthetic, since the carbon skeleton comes from the plant
Why the epimer ratio is an analytical parameter
The ratio of the two forms describes the composition of the batch and cannot be inferred from the name on the label.
- Two batches with identical assay figures can hold quite different epimer ratios
- The ratio has to be measured, then written on the certificate as two numbers
- An achiral chromatographic method may report the pair as a single peak
- Buyers who need a defined ratio state it in the order rather than assuming a default
Separating the epimers in practice
Chromatographic resolution of two epimers is a method development task, not a default setting.
- Gas chromatography with mass spectrometric detection after derivatisation of the phenolic hydroxyl
- Reversed-phase liquid chromatography with long shallow gradients and elevated column efficiency
- Chiral or polysaccharide stationary phases where the standard column merges the peaks
- Reference standards of both epimers injected in the same sequence as the sample
- Peak assignment recorded in the raw data, not reconstructed afterwards from memory
Spectroscopic confirmation of structure
Chromatography places a peak; spectroscopy says what the peak is.
- Proton and carbon nuclear magnetic resonance distinguish the saturated ring from an unsaturated analogue
- Two-dimensional correlation experiments settle the configuration at the ninth carbon
- High resolution mass spectrometry confirms the elemental composition behind the formula weight
- Infrared spectroscopy provides a quick fingerprint comparison with a retained reference trace
Impurity classes to expect
The synthetic route leaves a characteristic set of companions in the isolated material.
- Unconverted precursor left over from an incomplete hydrogenation step
- Isomeric cannabinoids formed during the cyclisation stage
- Traces of the metal catalyst, determined as elemental impurities
- Solvent residues from extraction and from the final crystallisation
- Oxidation products formed later during storage in an open container
Stability and storage of the isolated material
Saturating the ring removes one oxidation-prone site, which does not make the compound indifferent to its surroundings.
- The phenolic hydroxyl group remains sensitive to oxygen and to light
- Cold, dark storage in a sealed container under inert gas is the working default
- Amber glass rather than clear glass for stock solutions
- Freeze and thaw cycles logged, because repeated cycling is a common cause of drift
What the batch file has to contain
For a substance sold under an ambiguous abbreviation the paperwork carries the identity.
- Registry number of the specific epimer or the measured ratio of both
- Assay with the analytical method named next to the figure
- Elemental impurity and residual solvent results for that batch
- Batch number, manufacturing date and a retest date
- Regulatory status in the destination country, confirmed before shipment
How to read a supplier page critically
Most disagreements about this compound come from vocabulary rather than from chemistry.
- Treat the bare abbreviation as incomplete until a registry number appears beside it
- Ask which epimer the quoted assay figure refers to
- Check whether the formula weight on the page matches the structure shown
- Prefer pages that name their analytical methods over pages that only name numbers
Pokrewne odczynniki laboratoryjne
- Coluracetam, czystość substancji ≥ 99%, 1000mg
- Noopept / НООПЕПТ. Syntetyczna substancja ≥ 99% 1000MG.
- Phenylpiracetam / Phenylpiracetam, Purity ≥ 99%, 1000mg
- Oxiracetam / Oksiracetam, czystość ≥ 99%, 1000mg
Piśmiennictwo
Badania na zwierzętach i in vitro indeksowane w bazie PubMed; strona nie zawiera wskazówek dotyczących stosowania u ludzi.
- Tanaka R Identification of hexahydrocannabinol (HHC), dihydro-iso-tetrahydrocannabinol (dihydro-iso-THC) and hexahydrocannabiphorol (HHCP) in electronic cigarette cartridge products 2024, Forensic toxicology. PMID 37365398
- Šíchová K Hexahydrocannabinol: pharmacokinetics, systemic toxicity, and acute behavioral effects in Wistar rats 2025, The international journal of neuropsychophar. PMID 40643195
- Labadie M Hexahydrocannabinol poisoning reported to French poison centres 2024, Clinical toxicology (Philadelphia, Pa.). PMID 38426845
- Schirmer W Identification of human hexahydrocannabinol metabolites in urine 2023, European journal of mass spectrometry (Chich. PMID 37709263
Kwalifikacja odczynnika. Preparat pozostaje poza zakresem użycia u ludzi. Materiał nie jest produktem weterynaryjnym. Jest to wysokiej czystości produkt laboratoryjny do prac badawczych z użyciem HPLC i GC-MS. Poza kategorią produktów leczniczych i spożywczych.
