Diisobutyl phthalate
CAS 84-69-5
EC 201-553-2
Formula C16H22O4
MW 278.34 g/mol
Polymers & Resins Plastics & PolymersPersonal Care & CosmeticsPrinting & Packaging Plasticizer & SoftenerUV Protection & StabilizationPreservation & BiocideFlavoring & AcidulantCatalysisCross-linking & Curing
Description
Diisobutyl phthalate (DIBP, CAS 84-69-5) is a phthalate ester plasticizer commercially available under trade names including Palatinol IC, Hexaplas M/1B, and Kodaflex DIBP. It carries no assigned E-code and is classified under HS code 29173400 within the broader phthalate ester family.
In PVC and cellulose-based polymer formulations, DIBP lowers the glass transition temperature of the polymer matrix, increasing chain mobility and delivering measurable flexibility at lower loadings than many comparable esters. It also functions as a solvent carrier in printing inks and as a fixative in fragrance compositions, where it reduces evaporation rate of volatile aromatic components.
DIBP is supplied as a neat liquid grade and is subject to REACH regulation, where it is listed as a Substance of Very High Concern (SVHC) due to reproductive toxicity classification. Procurement teams should confirm current authorisation status and downstream use conditions before sourcing. Standard packaging includes IBC and bulk tanker formats.
In PVC and cellulose-based polymer formulations, DIBP lowers the glass transition temperature of the polymer matrix, increasing chain mobility and delivering measurable flexibility at lower loadings than many comparable esters. It also functions as a solvent carrier in printing inks and as a fixative in fragrance compositions, where it reduces evaporation rate of volatile aromatic components.
DIBP is supplied as a neat liquid grade and is subject to REACH regulation, where it is listed as a Substance of Very High Concern (SVHC) due to reproductive toxicity classification. Procurement teams should confirm current authorisation status and downstream use conditions before sourcing. Standard packaging includes IBC and bulk tanker formats.
Physical Properties
| Melting Point | -64 °C |
| Boiling Point | 296.5 °C |
| Density | 1.039 g/cm³ @ Temp: 20 °C |
| Flash Point | >230 °F |
| Appearance | clear liquid |
| Color | Colorless to Light yellow |
| Odor | Practically odorless when pure |
| Form | neat |
| Water Solubility | Insoluble |
| Vapor Pressure | 11.2-1470Pa at 100℃ |
| Refractive Index | n 20/D 1.49(lit.) |
| Log P | 4.11-4.45 at 20-30℃ |
Safety & Handling (Learn More)
Danger GHS08 GHS09 GHS07
H
H335H336H360H400H410H412
P
P203P261P271P273P280P318P319P391P405P501P304+P340P403+P233
Trade & Regulatory
| HS Code | 29173400 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 2 |
Other Names
bis(2-methylpropyl) benzene-1,2-dicarboxylateKodaflex DIBPDIBPPalatinol ICHexaplas M/1BIsobutyl phthalateDi-iso-Butyl phthalate
Related Products
Raw Materials
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