What is this ingredient?

미국 FDA 물질 등록 · UNII 589519D43L · 등록명 4-TERT-BUTYLTOLUENE · 단일 화학물질

All ingredients

Ingredient Dictionary

4-TERT-BUTYLTOLUENE

Definition

US FDA substance register · UNII 589519D43L · registered name 4-TERT-BUTYLTOLUENE · 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

4-TERT-BUTYLTOLUENEINCIBenzene, 1-(1,1-dimethylethyl)-4-methyl-Synonym

CAS No.chemical registry number: 98-51-1
EC No.EU chemical inventory number: 202-675-9
DTXSIDUS EPA chemical ID: DTXSID1024704
DTXCIDUS EPA compound ID: DTXCID404704

IUPAC: 1-tert-Butyl-4-methylbenzene
Molecular formula: C11H16
Molecular weight: 148.249 g/mol

Measured properties

Appearance: P-tert-butyltoluene is a clear colorless liquid with an aromatic gasoline-like odor. (NTP, 1992) · Colorless liquid with a distinct aromatic odor, somewhat like gasoline, [NIOSH]
Odour: DISTINCT AROMATIC ODOR · Gasoline-like odor
Boiling point: 379 °F at 760 mmHg (NTP, 1992) · 193 °C @ 760 MM HG
Melting point: -62 °F (NTP, 1992) · -52 °C
Solubility: less than 1 mg/mL at 63 °F (NTP, 1992) · SLIGHTLY SOL IN ALC, VERY SOL IN ETHER, SOL IN ACETONE, BENZENE, VERY SOL IN CHLOROFORM
Density: 0.8612 at 68 °F (NTP, 1992) - Less dense than water, will float · 0.8612 @ 20 °C/4 °C
Odour threshold: 5 ppm
Melting/freezing point: -52 ℃
Initial boiling point and range: 193 ℃(101.3 kPa)
Flash point: 63 ℃(O.C.)
Upper/lower flammability or explosive limits: 7.1 / 0.7 %
Vapour pressure: 0.65 ㎜Hg (25℃)
Water solubility: 5.5 ppm (20℃)
Vapour density: 4.62
Relative density: 0.8612
n-Octanol/water partition coefficient (Kow): 5.17
Auto-ignition temperature: 510 ℃
Molecular weight: 148.25

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 3 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

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 2 eye studies are on record.

Classed as low1

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 5 studies

Classification not possible
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Category 2A-2B
Eye Irritation · Screening
Category 6.4A (Category 2A)
Eye Irritation · Read Across