Ingredient Dictionary

VALERALDEHYDE

Pentanal is a saturated fatty aldehyde composed from five carbons in a straight chain.

Definition

Pentanal is a saturated fatty aldehyde composed from five carbons in a straight chain. It has a role as a plant metabolite.

Source: PubChem

US FDA substance register · UNII B975S3014W · registered name Valeraldehyde · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

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

VALERALDEHYDEINCIPentanalSynonym

CAS No.chemical registry number: 110-62-3
EC No.EU chemical inventory number: 203-784-4
DTXSIDUS EPA chemical ID: DTXSID7021653
DTXCIDUS EPA compound ID: DTXCID001653

IUPAC: Pentanal
Molecular formula: C5H10O
Molecular weight: 86.134 g/mol

Measured properties

Appearance: liquid
Colour: colourless
Melting/freezing point: -91.5 ℃
Initial boiling point and range: 103 ℃
Flash point: 6.5 ℃
Evaporation rate: 2.62
Upper/lower flammability or explosive limits: 7.2 / 1.4 %
Vapour pressure: 26 ㎜Hg (20℃)
Water solubility: 1.17X10+4 ㎎/ℓ (20℃)
Vapour density: 3
Relative density: 0.8095 (20℃)
n-Octanol/water partition coefficient (Kow): 1.5
Auto-ignition temperature: 222 ℃
Viscosity: 0.54 (20℃, mPa s)
Molecular weight: 86.13

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 8 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
Flavouring and nutrient2
No specific technical function1
Monomers1
Intermediate1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 3 eye studies are on record.

Classed as highly irritating1

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 7 studies

Classification not possible
Skin Sensitization · Screening
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Category 6.3A (Category 2)
Skin Irritation · Read Across
Category 1
Skin Irritation · Screening
Category 1
Eye Irritation · Screening
Serious eye damage/eye irritation - Category 2
Eye Irritation · Screening
Category 8.3A (Category 1)
Eye Irritation · Read Across