Terpene Atlas · Monoterpene

/OH-sih-meen/ · β-Ocimene (cis and trans)

Ocimene

The sweet, green, open-chain monoterpene plants puff out as an airborne signal · popularly ‘uplifting,’ though it has no established direct effect on the human brain.

Tropical fruitSweet herbsGreen leavesFlowersCitrusFresh wood

Formula

C₁₀H₁₆

Weight

136.23 g/mol

Class

C10 · acyclic (open-chain triene)

Form

Clear to pale yellow

Meet the molecule

One open chain, not a cage

Molecular class

Monoterpene · C10 · acyclic (open-chain triene)

Formula · weight

C₁₀H₁₆ · 136.23 g/mol

Biosynthetic origin

An acyclic C10 monoterpene produced from geranyl diphosphate (GPP).

Structural trait

An open chain with three double bonds (a triene) · light and flexible, which is part of why plants can release it into the air so readily.

A family of acyclic isomers · cis- and trans-β-ocimene smell similar but behave differently on a gas chromatograph, so labs may split or merge them.

Aroma spectrum

A qualitative sensory map

Relative prominence is illustrative, not a measured profile. Aroma is never produced by one molecule alone.

Tropical fruit

Sweet herbs

Green leaves

Flowers

Citrus

Fresh wood

fruity herbal fresh floral citrus woody

Physical identity

The isolated compound

Appearance

Clear to pale yellow.

Texture

Thin volatile liquid.

Volatility

A light, highly volatile monoterpene · it evaporates fast, which is exactly what makes it useful to plants as an airborne message.

This describes the isolated chemical. It does not predict whether flower will be dense, sticky, purple, or frosty.

Extreme close-up of the Ocimene resin, its glassy interior in detail

The resin, up close

Where it appears in nature

Beyond cannabis

Botanical sources of Ocimene: Basil, Mint, Mango, Orchids, Kumquat, Tarragon

Basil A classic sweet-herb source. Mint Mango Orchids Kumquat Tarragon

established direct brain effects

Ocimene has no established direct effect on the human brain. Its ‘uplifting’ reputation is consumer lore, not a controlled finding. reference

Evidence ladder

What's known · and how well

Research is ranked by strength, not promised as effects. Isolated-compound findings are separated from whole-cannabis evidence throughout.

Established mechanism1 claim

Ocimene is an acyclic C10 monoterpene (an open-chain triene) made from geranyl diphosphate; its cis and trans forms are established isomers.

established isolated terpene PubChem PMC

Brain research2 claims

Ocimene has no established direct effect on the central nervous system.

unproven isolated terpene reference

Uplifting or energizing descriptions are mainly consumer observations, not controlled findings.

consumer-reported whole cannabis reference

Body research1 claim

Isolated ocimene has shown in-vitro antimicrobial, antifungal, anti-inflammatory, and insect-signaling activity.

in-vitro isolated terpene reference

Laboratory findings; not demonstrated for a cannabis product in humans.

Recognized non-cannabis use1 claim

Used in fragrance and floral flavor accords, and studied in plant-insect communication and botanical defense.

approved use non-cannabis product reference

Unproven / insufficient1 claim

No established medical use exists for ocimene.

unproven isolated terpene reference

Myth vs evidence

The “ocimene energizes you” myth

The claim

Ocimene rides a bright, uplifting reputation in cannabis lore. The aroma is real; the direct energizing effect on the brain is not established.

The evidence

Ocimene has no established direct CNS effect. The ‘uplifting’ or ‘energizing’ label is a consumer-reported association, not a controlled finding, and a panel value does not predict how a product will feel.

unprovenwhole cannabisreference

Where it sits

Ocimene against the field

Objective chemistry and how often it shows up · not effects. Every authored terpene is plotted on each track; Ocimene is lit, the rest stay faint. The picture fills in as the Atlas grows (10 plotted so far).

Dominant aroma family

Its strongest sensory class, brightest to deepest.

citrus earthy

Ocimene

Prevalence in cannabis

How often it leads a profile. Qualitative, not measured.

rare common

Ocimene

Volatility · boiling point

Lower boils off sooner, reading as an earlier top note.

more volatile less volatile

Ocimene

Molecular weight

C10 monoterpenes are lighter than the C15 sesquiterpenes.

lighter heavier

Ocimene

Read as a table

Terpene	Dominant aroma family	Prevalence in cannabis	Volatility · boiling point	Molecular weight
Myrcene	Earthy	very common	167 °C	136 g/mol
Limonene	Citrus	very common	176 °C	136 g/mol
Pinene	Pine	common	155 °C	136 g/mol
Linalool	Floral	common	198 °C	154 g/mol
Beta-Caryophyllene	Spice	very common	262 °C	204 g/mol
Alpha-Humulene	Herbal	moderate	270 °C	204 g/mol
Terpinolene	Fresh	moderate	186 °C	136 g/mol
Ocimene this page	Fruity	uncommon	177 °C	136 g/mol
Alpha-Bisabolol	Floral	uncommon	314 °C	222 g/mol
Nerolidol	Woody	uncommon	276 °C	222 g/mol

Prevalence is a qualitative ordinal, not a measured concentration. Boiling points are approximate atmospheric-pressure values; the heavier sesquiterpenes are usually distilled under vacuum, so those figures are extrapolated.

Terpene neighborhood

Sensory & structural relatives

Myrcene Sibling open-chain monoterpene from the same GPP origin. Linalool Open-chain monoterpene relative. Geraniol Open-chain monoterpene alcohol relative.

On a certificate of analysis

How it shows up on a COA

Name variants a lab may print

Ocimene · β-Ocimene · cis-Ocimene · trans-Ocimene · (E)-β-Ocimene

Isomer note

Panels may report cis- and trans-ocimene separately or as one value.

Reading it

Reported as a percentage of product mass; absence from a panel can reflect the lab’s method or detection limit, not true absence. Batch values swing widely.

A terpene’s absence from a panel can reflect the panel’s method or detection limit · not true absence. Values swing batch to batch.

In products

Commonly reported · never guaranteed

Sweet, tropical-leaning chemovars

strainCommonly reported with ocimene present · but a strain name does not guarantee the profile across growers, harvests, or batches.

Find products rich in Ocimene Search live TerpAlerts menus for this terpene Compare terpene profilesPut two products side by side

Safety & handling

Read this before you trust a label

Pure terpene isolates are concentrated industrial chemicals · not the trace amounts in flower. Do not ingest undiluted isolates or apply them to skin without an appropriate dilution.

safety non-cannabis product reference

A product’s terpene panel cannot reliably predict an individual’s response or energy. Cannabinoid dose, route, tolerance, other medications, and personal biology usually matter more.

safety whole cannabis reference

As a highly volatile monoterpene, ocimene is quickly lost and altered by heat, air, and storage; fresh and aged samples can differ sharply.

established isolated terpene reference

◆THC and other cannabinoids usually influence intoxication more than any single terpene.

◆A terpene panel cannot reliably predict an individual patient’s response.

◆Pure isolates are concentrated industrial chemicals · not the trace amounts in flower.

◆Oxidation, heat, storage, and processing alter terpene chemistry.

◆Strain names do not guarantee a stable terpene profile across growers, harvests, or batches.

◆Discuss any cannabis decision, and other medications, with a qualified clinician.

Explore

Ocimene, three ways

Same molecule, three lenses. The information is identical in every mode.

Keep exploring

Where to next

← Terpene Atlas indexAll terpenes Find productsLive menus rich in Ocimene Compare profilesTwo products, side by side

Previous
← Terpinolene Next
Alpha-Bisabolol →

Sources (3)

TerpAlerts Cannabis Terpene Reference Guide reference
PubChem CID 5281553 · (E)-β-Ocimene PubChem
Terpene synthases from Cannabis sativa (PMC5371325) PMC

Last reviewed 2026-07-22 · TerpAlerts editorial

Educational information only · not medical advice, and not a claim that any cannabis product treats, cures, or prevents any condition. Evidence labels describe the strength and scope of research on the isolated compound. See the full site disclaimer and Privacy Policy.