Ingredient Dictionary

TRIDECYL ALCOHOL

Tridecan-1-ol is a long-chain primary fatty alcohol that is tridecane substituted by a hydroxy group at position 1.

Definition

Tridecan-1-ol is a long-chain primary fatty alcohol that is tridecane substituted by a hydroxy group at position 1. It has a role as a plant metabolite, a bacterial metabolite and a human metabolite. It is a tridecanol and a long-chain primary fatty alcohol.

Source: PubChem

US FDA substance register · UNII 8I9428H868 · registered name TRIDECYL ALCOHOL · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Adjusts thicknessVISCOSITY CONTROLLINGMakes skin soft and smoothSKIN CONDITIONING - EMOLLIENTKeeps an emulsion from separatingEMULSION STABILISINGReplaces oils washed awayREFATTINGKeeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGListed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCE

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

TRIDECYL ALCOHOLINCI트라이데실알코올Korean label name (MFDS standard)1-TridecanolSynonym

CAS No.chemical registry number: 112-70-9
CAS No.chemical registry number: 26248-42-0
EC No.EU chemical inventory number: 203-998-8
DTXSIDUS EPA chemical ID: DTXSID2021947
DTXCIDUS EPA compound ID: DTXCID901947

IUPAC: Tridecan-1-ol
Molecular formula: C13H28O
Molecular weight: 200.366 g/mol

Measured properties

Melting/freezing point: 32~33 ℃
Initial boiling point and range: 152 ℃((14 mmHg))
Flash point: 121 ℃((o.c.))
Upper/lower flammability or explosive limits: 5 / 0.6 %
Vapour pressure: 0.000436 ㎜Hg ((25 ℃))
Vapour density: 6.9
Relative density: 0.8223 ((31 ℃))
n-Octanol/water partition coefficient (Kow): 5.26
Viscosity: 3.20 cP (80 C)
Molecular weight: 200.36

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: KOSHA safety data sheets (Korea)

What products actually use it for

What the 9 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 conditioner2
Fragrance2
Surfactant (surface active agent)2
Viscosity modifier1
Emulsifier1
Deodorizer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 1 eye studies are on record.

Classed as highly irritating5Classed as low4

The studies disagree (the most common conclusion covers 56%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 6 studies

Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: as mentioned below
Category 6.3A (Category 2)
Skin Irritation · Read Across
Severe Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: as mmentioned below
Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: as mentioned below
Severe Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to