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Antioxidant 565

CAS No.
991-84-4
Chemical Name:
Antioxidant 565
Synonyms
IRGANOX 565;2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino)phenol;2,4-bis(Octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine;UVA-AO;IRGANDX565DD;Antioxidant 25;Antioxidant 565;antioxidant AN 565;Antioxidant Sunoxy 565;Antioxidant Lknox 565
CBNumber:
CB7705355
Molecular Formula:
C33H56N4OS2
Molecular Weight:
588.95
MDL Number:
MFCD00134696
MOL File:
991-84-4.mol
MSDS File:
SDS
Last updated:2026-06-24 18:39:39

Antioxidant 565 Properties

Melting point 92-95 °C
Boiling point 670.7±65.0 °C(Predicted)
Density 1.07±0.1 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka 12.27±0.70(Predicted)
color White to Off-White
Cosmetics Ingredients Functions ANTIOXIDANT
InChIKey QRLSTWVLSWCGBT-UHFFFAOYSA-N
SMILES C1(O)=C(C(C)(C)C)C=C(NC2=NC(SCCCCCCCC)=NC(SCCCCCCCC)=N2)C=C1C(C)(C)C
LogP 13.2 at 25℃
FDA 21 CFR 175.105; 175.125; 176.180;177.2600; 178.2010
Indirect Additives used in Food Contact Substances 4-((4,6-BIS(OCTYLTHIO)6-BIS(OCTYLTHIO)6-BIS(OCTYLTHIO)-S-TRIAZIN-2-YL)AMINO)-2,6-DI-TERT-BUTYLPHENOL
FDA UNII O1Q826IX7H
EPA Substance Registry System Phenol, 4-[[4,6-bis(octylthio)-1,3,5-triazin-2-yl]amino]-2,6-bis(1,1-dimethylethyl)- (991-84-4)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P261-P280-P305+P351+P338
TSCA  TSCA listed
HS Code  2933.69.6050
REACH Registrations Active

Antioxidant 565 price More Price(65)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical B5977 4-[[4,6-Bis(n-octylthio)-1,3,5-triazin-2-yl]amino]-2,6-di-tert-butylphenol 991-84-4 5G $74 2026-04-30 Buy
TCI Chemical B5977 4-[[4,6-Bis(n-octylthio)-1,3,5-triazin-2-yl]amino]-2,6-di-tert-butylphenol 991-84-4 25G $222 2026-04-30 Buy
TRC TRC-B591828-50MG 4-{[4,6-Bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino-2,6-di-tert-butylphenol 991-84-4 50mg $66 2026-06-03 Buy
TRC TRC-B591828-500MG 4-{[4,6-Bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino-2,6-di-tert-butylphenol 991-84-4 500mg $249 2026-06-03 Buy
TRC TRC-B591828-100MG 4-{[4,6-Bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino-2,6-di-tert-butylphenol 991-84-4 100mg $92 2026-06-03 Buy
Product number Packaging Price Buy
B5977 5G $74 Buy
B5977 25G $222 Buy
TRC-B591828-50MG 50mg $66 Buy
TRC-B591828-500MG 500mg $249 Buy
TRC-B591828-100MG 100mg $92 Buy

Antioxidant 565 Chemical Properties, Uses, Production

Description

Antioxidants are a class of chemicals that, when present only in small quantities in a polymer system, can slow or inhibit the oxidation of the polymer, thereby preventing the polymer from aging and extending its service life. They are also called "antiaging agents". Antioxidant 565, chemical name of which is 6-(4-hydroxy-3, 5-ditert-butyl phenyl amino)-2, 4-din-n-octyl sulfide -1, 3, 5-triazine, is white crystalline powder, soluble in many organic solvents, insoluble in water.

Application

Antioxidant 565 is a kind of macromolecule, which was a multi-function blocked phenolic antioxidant. Mainly, antioxidant 565 is suitable for the post-processing and stable treatment of unsaturated rubber. It can protect the material from thermal oxidation degradation in the process of production, processing as well as final use. At the same time, antioxidant 565 is a variety of excellent resin antioxidants and photothermal stabilizer, with small addition, low volatility, high color fastness, and can prevent the formation of gel characteristics. Traditionally, antioxidant 565 is a highly effective antioxidant used in a variety of elastomers, including polybutadiene (BR), polyisoprene (IR), latex styrene-butadiene rubber (SBR), nitrile rubber (NBR), carboxylate SBR latex (XSBR), styrene block copolymers such as SBS and SIS. Antioxidant 565 is also used for adhesives (hot melt solvent-based), natural and synthetic viscosifying resins, epdm, ABS, impact resistant polystyrene, polyamide, and polyolefin.

Chemical Properties

Antioxidant 565 is a highly effective antioxidant. It prevents gel formation, changes to molecular weight and maintains excellent polymer color in unsaturated elastomers. This grade is highly effective at low concentrations and matches the performance of other stabilizers at higher levels. It exhibits non-staining and low volatility. It allows easy dispersion due to low melting point in elastomeric substrates using melt compounding techniques. It can be incorporated into process streams by dissolving in suitable organic solvents or aromatic extender oils.

Definition

ChEBI: 4-((4,6-bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-di-tert-butylphenol is a member of triazines.

Flammability and Explosibility

Not classified

Synthesis

By taking 2,6-di-tert-butylphenol as the raw material, and then adding sodium nitrite solution dropwise to form an intermediate product of 2,6-di-tert-butyl-4-nitrosophenol solution, with the added Rayon Nickel is used as a catalyst and carbon monoxide is used instead of hydrogen as a reducing agent to overcome hydrogen as a reducing agent. The pressure in the hydrogenation process is high, which is prone to explosion problems. At the same time, iron crystals are added to remove excess carbon monoxide and avoid the effects of carbon monoxide toxicity. The impurities are removed by filtration, and other by-products will not be formed, which can greatly increase the yield of antioxidant 565, and the product purity is high.

950-58-3
978-66-5
991-84-4
Synthesis of Antioxidant 565 from 4-amino-2,6-di-tert-butylphenol and 1,3,5-Triazine, 2-chloro-4,6-bis(octylthio)-

Antioxidant 565 Preparation Products And Raw materials

Global Suppliers ( 209)
Supplier Tel Email Country ProdList Advantage
Tianjin Zhongxin Chemtech Co., Ltd. 022-66880623 sales@tjzxchem.com China 612 60
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Yan Tai Heng Nuo Chemical Technology Co., Ltd. 0535-6397790 18653519533; meiyitian207@163.com China 263 55
Shanghai Industrials and Development Co., Ltd. 021-64695700 wzhzh@sanrise.cn China 66 60
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75
TCI AMERICA 800-4238616 sales@tciamerica.com Americas 23636 75
Quzhou Juhua Friendship Co., Ltd 0570-3066667 China 3922 58
Wuhan Wufang Albert Pharmaceutical & Chemical Co., Ltd. 027-85838075 China 21 58

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View Latest Price from Antioxidant 565 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Antioxidant 565 pictures 2026-09-11 Antioxidant 565
991-84-4
1KG 99%min 1000kg WUHAN FORTUNA CHEMICAL CO., LTD
 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine pictures 2026-08-25 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine
991-84-4
$2.20-8.80 1kg 99% 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine  pictures 2026-08-20 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine
991-84-4
$1.10 1g 99.00% 100 Tons Min Dideu Industries Group Limited
phenol,4-[[4,6-bis(octylthio)-1,3,5-triazin-2-yl]amino]-2,6-bis(1,1-dimethylet 4-[[4,6-bis(octylthio)-1,3,5-triazin-2-yl]amino]-2,6-bis(1,1-dimethylethyl)-Phenol 6-(4-Hydroxy-3,5-di-tert-butylanilino)-2,4-bis(octylthio)-1,3,5-triazine N-[2,4-Bis(octylthio)-1,3,5-triazine-6-yl]-3,5-di-tert-butyl-4-hydroxyaniline UVA-AO Antioxidant 565 4-[[4,6-bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino]-2,6-ditert-butylphenol 4-[[4,6-bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino]-2,6-ditert-butyl-phenol 4-[[4,6-bis(octylthio)-s-triazin-2-yl]amino]-2,6-ditert-butyl-phenol 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butyla Phenol, 4-4,6-bis(octylthio)-1,3,5-triazin-2-ylamino-2,6-bis(1,1-dimethylethyl)- 2,6-DI-TERT-BUTYL-4-(4,6-BIS(OCTYLTHIO)-1,3,5-TRIAZINE-2-YLAMINO)PHENOL 2,4-BIS(OCTYLMERCAPTO)-6-(4-HYDROXY-3,5-DI-TERT-BUTYLANILINO)-1,3,5-TRIAZINE 2,4-BIS-(N-OCTYLTHIO)-6-(4-HYDROXY-3,5-DI-TERT-BUTYLANILINO)-1,3,5-TRIAZINE 2,4-Bis-(octylthio)-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine / IRGANOX 565 4-((4,6-Bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-di-tert-butylphenol 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazinel antioxidant AN 565 IRGANDX565DD 4-[[4,6-Bis(n-octylthio)-1,3,5-triazin-2-yl]amino]-2,6-di-tert-butylphenol 2,4-Bis(octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine ISO 9001:2015 REACH ANTIOXIDANT TRUELICHT AN565 Antioxidant Sunoxy 565 High Quality Polymeric Hindered Phenolic Antioxidant 565 CAS 991-84-4 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylam... 2,4-Bis-(octylthio)-6-(3,5-di tert butyl-4-hydroxyanilino) -1,3,5-triazine (Appolo-565) [Under Development] Antioxidant Lknox 565 4-[[4,6-bis(octylthio)-1,3,5-triazin-2-yl]amino]-2,6-bis(1,1-dimethyletphenol 2,6-di-tert-butyl-4-(4,6-bix(octylthio)-1,3,5-triazin-2-ylamino)phenol 2,4-Bis(n-octylthio)-6-(4‘-hydroxy-3‘,5‘-di-tert-butylanilino)-1,3,5-triazine in Acetonitrile Antioxidant 25 4-((4,6-Bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-di-tert-butylphe 2,4-bis(Octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino)phenol IRGANOX 565 991-84-4 C33H56N4OS2 Organics Antioxidant series