Pristane is a norterpene that is an acyclic saturated hydrocarbon derived from phytane by loss of its C-16 terminal methyl group.
Definition
Pristane is a norterpene that is an acyclic saturated hydrocarbon derived from phytane by loss of its C-16 terminal methyl group. It has a role as an immunological adjuvant and a biomarker. It is a norterpene and a long-chain alkane.
Source: PubChem
US FDA substance register · UNII 26HZV48DT1 · registered name PRISTANE · single chemical substance
Cosmetic roles
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name プリスタン: 本品は、サメ肝油（＊）などの天然油を水素添加して得られる飽和分岐炭化水素であり、次の化学式で表される。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 1921-70-6
- EC No.EU chemical inventory number
- 217-650-8
- DTXSIDUS EPA chemical ID
- DTXSID70870919
- DTXCIDUS EPA compound ID
- DTXCID80818600
- IUPAC
- 2,6,10,14-Tetramethylpentadecane
- Molecular formula
- C19H40
- Molecular weight
- 268.529 g/mol
What products actually use it for
What the 1 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Softener and conditioner1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
3 skin studies and 0 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 3 studies
- SkinIrr2
Skin Irritation · QSAR Predicted - Skin corrosion/irritation - Category 2
Skin Irritation · Screening - Category 6.3A (Category 2)
Skin Irritation · Read Across
Source: US EPA CompTox dashboard
Related literature
- Fn14 signalling participates in pristane-induced murine lupus through exacerbating oxidative stress. · 2026
- BALB/c mice vaccinated with soluble Leishmania major antigens plus pristane adjuvant develop Th 1 immune response beneficial against leishmanial challenge. · 2025
- Oxidative DNA Damage Accelerates Skin Inflammation in Pristane-Induced Lupus Model · 2020
- Oxidative stress and immune complexes: Pathogenic mechanisms in pristane induced murine model of lupus. · 2019
- Evaluation of Ethanolic Extracts of Mullaca (Physalis Angulata L.) Herbs for Treatment of Lupus Disease in Mice Induced Pristane · 2014
Linked databases 17
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Japanese · Chinese