Ingredient Dictionary

D-TRIMETHYL-3-CYCLOPENTENE-1-ACETALDEHYDE

(R)-alpha-campholenaldehyde is an alpha-campholenaldehyde.

Definition

(R)-alpha-campholenaldehyde is an alpha-campholenaldehyde.

Source: PubChem

US FDA substance register · UNII 75LU5216DI · registered name Campholenic aldehyde, (+)- · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

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

Names & identifiers

D-TRIMETHYL-3-CYCLOPENTENE-1-ACETALDEHYDEINCI3-Cyclopentene-1-acetaldehyde, 2,2,3-trimethyl-, (R)-Synonym

CAS No.chemical registry number: 4501-58-0
EC No.EU chemical inventory number: 224-815-8
DTXSIDUS EPA chemical ID: DTXSID3044756
DTXCIDUS EPA compound ID: DTXCID1024756

IUPAC: [(1R)-2,2,3-Trimethylcyclopent-3-en-1-yl]acetaldehyde
Molecular formula: C10H16O
Molecular weight: 152.237 g/mol

Measured properties

Appearance: Colourless liquid, refreshing sweet-woody odour · solid
Boiling point: 75 °C (105 mm Hg)
Solubility: Insoluble in water, soluble in oils · Miscible at room temperature (in ethanol)
Density: 0.918-0.924
Melting/freezing point: 105 ℃(101325Pa)
Flash point: 177.7 ℃(cal.)
Flammability (solid, gas): not flammable
Vapour pressure: 0.028 ㎩ (25°C)
Water solubility: 4.47 g/ℓ (25°C)
Vapour density: 5.08029340697273
Relative density: 1.18 (20°C)
n-Octanol/water partition coefficient (Kow): 1.45
Molecular weight: 147.1761

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 4 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.

Fragrance2
Flavouring and nutrient2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 0 eye studies are on record.

Classed as highly irritating2Classed as low1

The study conclusions largely agree (67%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 3 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) according to EU Method B.6 (Skin Sensitisation) according to EPA OTS 798.4100 (Skin Sensitisation)