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36443-68-2

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36443-68-2 Usage

Characterization

Antioxidant 245 is a sterically hindered phenolic antioxidant particularly suitable for organic substrates. It protects the substrates against thermo-oxidative degradation during manufacturing, processing and end-use. Antioxidant 245 is odorless, of low volatility, has a good color stability and exhibits high extraction resistance.

Applications

Antioxidant 245 is effective in styrene polymers, particularly impact modified polystyrenes, ABS, MBS, SB and SBR-latices as well as in POM homo- and copolymers. It is also very useful for the stabilization of polyurethanes, polyamides, thermoplastic polyesters, PVC and other polymers. In addition to imparting thermostability to the finished polymer Antioxidant 245 is effective as chain stopper during PVC polymerization.

Features/benefits

Antioxidant 245 can be used in combination with other additives such as costabilizers (e.g. thioesters, phosphites, phosphonites, lactones), light stabilizers, and other functional stabilizers. The effectiveness of the blends of Antioxidant 245 with IRGAFOS 168 (Irganox B-blends) is noteworthy.

Guidelines for use

Already 0.05 – 0.1 % of Antioxidant 245 provides long-term thermal stability tothe polymer. Concentrations up to 1.0 % can be used depending on the substrate and the requirements of the end application.

Uses

Different sources of media describe the Uses of 36443-68-2 differently. You can refer to the following data:
1. Antioxidant 245 is an ethylenebis (oxyethylene) bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate). It is an antioxidant for processing and long-term thermal stabilization. It has low volatility, good color stability and is odorless. Exhibits high extraction resistance. Antioxidant 245 protects the substrates against thermo-oxidative degradation during manufacturing, processing and end use. It is compatible with styrene polymers including polystyrenes, ABS, MBS, SB and SBR as well as POM homo-and copolymers. Also compatible with polyurethanes, polyamides, thermoplastic polyesters, PVC and other polymers. It is effective as chain stopper during PVC polymerization. Its recommended dosage level is 0.05-0.1% for long-term thermal stability. Concentrations up to 1.0% can be used depending on the substrate and the requirements of the end application.
2. Triethylene Glycol Bis(3-?tert-?butyl-?4-?hydroxy-?5-?methylphenyl)?propionate is used as a polymer antioxidant stabilizer in adhesives and polymers for food contact. Generally functions as an antioxidant in the chemistry of plastics.

Health & Safety

Antioxidant 245 exhibits a very low order of oral toxicity and does not presentany abnormal problems in its handling or general use. Detailed information on handling and any precautions to be observed in theuse of the product(s) described in this leaflet can be found in our relevanthealth and safety information sheet.

Flammability and Explosibility

Notclassified

Safety Profile

Questionable carcinogen withexperimental tumorigenic data. When heated todecomposition it emits acrid smoke and irritating vapors.

Check Digit Verification of cas no

The CAS Registry Mumber 36443-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,6,4,4 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 36443-68:
(7*3)+(6*6)+(5*4)+(4*4)+(3*3)+(2*6)+(1*8)=122
122 % 10 = 2
So 36443-68-2 is a valid CAS Registry Number.
InChI:InChI=1/C31H46O7/c1-20-16-22(18-24(26(20)33)29(3,4)5)31(9,28(35)38-15-14-37-13-12-36-11-10-32)23-17-21(2)27(34)25(19-23)30(6,7)8/h16-19,32-34H,10-15H2,1-9H3

36443-68-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name Triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate

1.2 Other means of identification

Product number -
Other names Primanox245

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Oxidizing/reducing agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:36443-68-2 SDS

36443-68-2Synthetic route

β-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid methyl ester
6386-39-6

β-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid methyl ester

monobutyltin oxide
51590-67-1

monobutyltin oxide

oxalic acid monohydrate
856335-90-5

oxalic acid monohydrate

tri(ethylene glycol)bis-3-(3-tert-butyl-4-hydroxy-5-methyl-5-methylphenyl)propionate
36443-68-2

tri(ethylene glycol)bis-3-(3-tert-butyl-4-hydroxy-5-methyl-5-methylphenyl)propionate

Conditions
ConditionsYield
With nitrogen In water; toluene; 2,2'-[1,2-ethanediylbis(oxy)]bisethanol95%
In water; toluene; 2,2'-[1,2-ethanediylbis(oxy)]bisethanol94%

36443-68-2Downstream Products

36443-68-2Relevant articles and documents

Process for the production of ester compounds

-

, (2008/06/13)

In producing ester compound useful as an antioxidant for organic materials which are represented by the formula: STR1 wherein R1 and R2 are the same or different and represent hydrogen or straight or branched chain alkyl radicals containing 1-8 carbon atoms, Z is an organic radical derived from an n-hydroxy alcohol, and n denotes an integer of 1 to 4, by transesterification, monoalkyltin compounds are used as a catalyst, whereby the ester compounds can be produced with high quality and in high yields.

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