Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
CAS 2082-79-3
EC 218-216-0
Formula C35H62O3
MW 530.86 g/mol
UV Absorbers & Stabilizers Plastics & PolymersCoatings, Adhesives, Sealants & ElastomersAutomotivePersonal Care & CosmeticsLubricants & Metalworking UV Protection & StabilizationAntioxidant & StabilizerLubrication
Description
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, commercially known as Irganox 1076 and Ralox 530, is a hindered phenolic antioxidant registered under CAS 2082-79-3 and EC 218-216-0. It carries no assigned E-code and is classified under HS code 29182900.
In polyolefin and PVC processing, it interrupts free-radical chain oxidation during high-temperature melt compounding, preventing molecular weight degradation and discolouration. In lubricant formulations, its long octadecyl chain provides compatibility with non-polar base oils while simultaneously suppressing oxidative breakdown at elevated service temperatures. It is also used in cosmetic emollients as an antioxidant stabiliser for lipid-rich systems.
The material is available as a white crystalline powder compliant with REACH registration requirements. It meets specifications relevant to food-contact polymer applications under EU and FDA frameworks, and is supplied in fibre drums and multi-wall paper sacks. Prospective buyers should confirm grade-specific compliance documentation with the supplier prior to ordering.
In polyolefin and PVC processing, it interrupts free-radical chain oxidation during high-temperature melt compounding, preventing molecular weight degradation and discolouration. In lubricant formulations, its long octadecyl chain provides compatibility with non-polar base oils while simultaneously suppressing oxidative breakdown at elevated service temperatures. It is also used in cosmetic emollients as an antioxidant stabiliser for lipid-rich systems.
The material is available as a white crystalline powder compliant with REACH registration requirements. It meets specifications relevant to food-contact polymer applications under EU and FDA frameworks, and is supplied in fibre drums and multi-wall paper sacks. Prospective buyers should confirm grade-specific compliance documentation with the supplier prior to ordering.
Physical Properties
| Melting Point | 50-55 °C |
| Boiling Point | 568.1±45.0 °C(Predicted) |
| Density | 0.929±0.06 g/cm3(Predicted) |
| Flash Point | >230 °F |
| Appearance | white crystalline powder |
| Color | White to Off-White |
| Form | neat |
| Water Solubility | 2.85μg/L at 20℃ |
| Log P | 13.930 (est) |
Safety & Handling (Learn More)
Warning GHS07 GHS08 GHS09
H
H317H361H411
P
P203P261P272P273P280P318P321P391P405P501P302+P352P333+P317P362+P364
Trade & Regulatory
| HS Code | 29182900 |
| Storage Class | 11 - Combustible Solids |
Other Names
Stearyl 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propionateOctadecyl 3-(3,5-Ditert-Butyl-4-Hydroxyphenyl)propanoateoctadecyl di-tert-butyl-4-hydroxyhydrocinnamateIRGANOX 1076RALOX(R) 530Antioxidant 1076OCTADECYL-3,5-DI-TERT-BUTYL-4-HYDROXYCINNAMATEOCTADECYL 3,5-DI-TERT-BUTYL-4-HYDROXYHYDROCINNAMATE
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Raw Materials
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