Pentadecane is a straight-chain alkane with 15 carbon atoms.
Definition
Pentadecane is a straight-chain alkane with 15 carbon atoms. It is a component of volatile oils isolated from plants species like Scandix balansae. It has a role as a volatile oil component, an animal metabolite and a plant metabolite.
Source: PubChem
US FDA substance register · UNII 16H6K2S8M2 · registered name PENTADECANE · single chemical substance
Pentadecane is the organic compound that conforms to the formula:
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 629-62-9
- EC No.EU chemical inventory number
- 211-098-1
- DTXSIDUS EPA chemical ID
- DTXSID6027268
- DTXCIDUS EPA compound ID
- DTXCID107268
- IUPAC
- Pentadecane
- Molecular formula
- C15H32
- Molecular weight
- 212.421 g/mol
Measured properties
- Appearance
- N-pentadecane is a colorless liquid. (NTP, 1992) · Wet Solid, Other Solid, Liquid
- Boiling point
- 519.13 °F at 760 mmHg (NTP, 1992) · 270.6 °C
- Melting point
- 50 °F (NTP, 1992) · 9.95 °C
- Solubility
- In water, 4.0X10-5 mg/L at 25 °C · Very soluble in ethyl ether, ethanol
- Density
- 0.7685 at 68 °F (NTP, 1992) - Less dense than water, will float · 0.7685 g/cu cm at 20 °C
- Stability
- Stable under recommended storage conditions.
- Colour
- colourless
- Melting/freezing point
- 9.9 ℃
- Initial boiling point and range
- 270.6 ℃(760 mmHg)
- Flash point
- 104 ℃(closed cup, calc.)
- Upper/lower flammability or explosive limits
- 6.5 / 0.45 %
- Vapour pressure
- 0.0034 ㎜Hg(25℃)
- Water solubility
- 0.000076 ㎎/ℓ
- Vapour density
- 7.3
- Relative density
- 0.7685 (20℃/ 4℃)
- n-Octanol/water partition coefficient (Kow)
- 7.71 (est.)
- Auto-ignition temperature
- 395 ℃
- Viscosity
- (37.0(SUS))
- Molecular weight
- 212.42
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 11 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.
- Fragrance3
- Lubricating agent2
- Fuel2
- Intermediate1
- Flavouring and nutrient1
- No specific technical function1
- Solvent1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
4 skin studies and 4 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 8 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to other guideline: s 1500.41 Federal Register Vol. 38, No. 187, of the 27 September 1973, page 27019 according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: EPA guideline equivalent or similar to
Source: US EPA CompTox dashboard
Related literature
- Modeling of the Purulent-Inflammatory Process in Mice Against the Background of Immunosuppression Using Hydrocortisone and 2, 6, 10, 14-tetramethylpentadecane. In Vivo Research · 2024
- Guidelines for the diagnosis and treatment of male‐pattern and female‐pattern hair loss, 2017 version · 2018
- Identification of the New High Oil and Rhizome Yielding Variety of Kaempferia galanga (Jor Lab K-1): A Highly Important Indigenous Medicinal Plants of North East India · 2017
- Study and Control Improvement on the "Mist" of Packaging Box · 2014
- Head-space volatiles of marula (Sclerocarya birrea subsp. caffra) · 2008
Linked databases 16
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- NIST Chemistry WebBook
- PubChem 2
- 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 · Korean · English · Japanese · Chinese