Antioxidant 1330

Synonym(s):1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene;2,4,6-Tris(3,5-di-tert -butyl-4-hydroxybenzyl)mesitylene;4,4′,4′′-[(2,4,6-Trimethyl-1,3,5-benzenetriyl)tris(methylene)]tris[2,6-bis(1,1-dimethylethyl)phenol

CAS NO.：1709-70-2
Empirical Formula: C54H78O3
Molecular Weight: 775.2
MDL number: MFCD00026284
EINECS: 216-971-0
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-17 09:50:08

What is Antioxidant 1330?

Chemical properties

Free-flowing, white, crystalline powder; no odor. Partially soluble in benzene and methylene chloride; insoluble in water. Permissible in contact with food products. Combustible.

The Uses of Antioxidant 1330

Antioxidant for polypropylene, high-density polyethylene, spandex fibers, polyamides, and specialty rubbers.

The Uses of Antioxidant 1330

1,?3,?5-?Trimethyl-?2,?4,?6-?tris(3,?5-?di-?tert-?butyl-?4-?hydroxybenzyl)?benzene is a phenolic antioxidant that is used as a polymer additive found in polyethylene, polypropylene, and polyvinyl chloride packaging materials.

General Description

1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene(HEMA) is an antioxidant that can be used to prevent the oxidative degradation of plastics.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by ingestion. An experimental teratogen. When heated to decomposition it emits acrid smoke and irritating fumes.

Properties of Antioxidant 1330

Melting point:	248-250 °C(lit.)
Boiling point:	739.54°C (rough estimate)
Density	0.8883 (rough estimate)
refractive index	1.5800 (estimate)
Flash point:	321℃
storage temp.	2-8°C
solubility	Chloroform (Slightly), Methanol (Very Slightly, Heated, Sonicated)
form	neat
pka	11.91±0.40(Predicted)
form	Solid
color	White to Off-White
Water Solubility	8.09μg/L at 20℃
CAS DataBase Reference	1709-70-2(CAS DataBase Reference)
EPA Substance Registry System	1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (1709-70-2)

Safety information for Antioxidant 1330

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.