Ingredient Dictionary

4-METHYLBENZALDEHYDE

P-tolualdehyde is a tolualdehyde compound with the methyl substituent at the 4-position.

Definition

P-tolualdehyde is a tolualdehyde compound with the methyl substituent at the 4-position. It has a role as a plant metabolite.

Source: PubChem

US FDA substance register · UNII GAX22QZ28Q · registered name P-TOLUALDEHYDE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Listed 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)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

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

Names & identifiers

4-METHYLBENZALDEHYDEINCI4-메틸벤즈알데하이드Korean label name (MFDS standard)Benzaldehyde, 4-methyl-Synonym

CAS No.chemical registry number: 104-87-0
EC No.EU chemical inventory number: 203-246-9
DTXSIDUS EPA chemical ID: DTXSID9041520
DTXCIDUS EPA compound ID: DTXCID7021520

IUPAC: 4-Methylbenzaldehyde
Molecular formula: C8H8O
Molecular weight: 120.151 g/mol

Measured properties

Appearance: liquid
Melting/freezing point: -6 ℃
Initial boiling point and range: 203~205 ℃
Flash point: 88 ℃
Upper/lower flammability or explosive limits: -6.32 / 0.95 %
Vapour pressure: 0.25 ㎜Hg(at 25℃)
Water solubility: 2270 ㎎/ℓ
Vapour density: 4.2
Relative density: 1.016~1.020
n-Octanol/water partition coefficient (Kow): 2.26
Auto-ignition temperature: 395 ℃
Molecular weight: 120.15

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 12 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.

Fragrance9
Intermediate1
Flavouring and nutrient1
Deodorizer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as moderate1

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

Category 2
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Category 2A
Eye Irritation · Screening