Ingredient Dictionary

TRIMETHYL PENTANYL DIISOBUTYRATE

2,2,4-Trimethyl-1,3-pentadienol diisobutyrate is a diester.

How much products actually contain

No product states its amount yet.

Of the products containing it, 318 list it before the 1% line and 0 after it (usually 1% or less).

Products using this ingredient

12 of 318 confirmed · likeliest to carry enough first · See all 318

Definition

2,2,4-Trimethyl-1,3-pentadienol diisobutyrate is a diester.

Source: PubChem

US FDA substance register · UNII 4KZA479DWQ · registered name TRIMETHYL PENTANYL DIISOBUTYRATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps a film flexiblePLASTICISER

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

Reviewed by CIR: Final Report: Safety Assessment of Monoalkylglycol Dialkyl Acid Esters as Used In Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name ジイソ酪酸トリメチルペンタニル: 本品は、イソ酪酸とトリメチルペンタンジオールとのジエステルであり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

TRIMETHYL PENTANYL DIISOBUTYRATEINCI트라이메틸펜타닐다이아이소부티레이트Korean label name (MFDS standard)Propanoic acid, 2-methyl-, 2,2-dimethyl-1-(1-methylethyl)-1,3-propanediyl esterSynonymジイソ酪酸トリメチルペンタニルJapanese labelling name

CAS No.chemical registry number: 6846-50-0
EC No.EU chemical inventory number: 229-934-9
DTXSIDUS EPA chemical ID: DTXSID1027635
DTXCIDUS EPA compound ID: DTXCID807635

IUPAC: 2,2,4-Trimethylpentane-1,3-diyl bis(2-methylpropanoate)
Molecular formula: C16H30O4
Molecular weight: 286.412 g/mol

Measured properties

Appearance: Liquid, CBI, Dry Powder · Clear liquid with a musty odor.
Boiling point: 380 °C · 716 °F
Melting point: Freezing point: -70 °C · -94 °F
Density: 0.94 at 25 °C/4 °C
Melting/freezing point: -70 ℃
Initial boiling point and range: 280 ℃
Flash point: 128 ℃
Upper/lower flammability or explosive limits: 3.1 / 0.48 %
Vapour pressure: 0.088 ㎩ (at 25℃)
Water solubility: 1 ㎎/ℓ (1-2mg/L at 20.5℃)
Vapour density: 9.9
Relative density: 0.941
n-Octanol/water partition coefficient (Kow): 4.11
Auto-ignition temperature: 424 ℃
Molecular weight: 286.46

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 45 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.

Plasticizer19
Binder10
Processing aids not otherwise specified5
Solvent2
Catalyst1
Film former1
Deodorizer1
Intermediate1

5 other uses

Polymerization promoter1
Chemical reaction regulator1
Hardener1
Fragrance1
Pigment1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 2 eye studies are on record.

Classed as low2

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 6 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Not classified
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
SkinSens1
Skin Sensitization · QSAR Predicted
Not classified
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to