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4,4-Thiobis(6-tert-butyl-m-cresol)

Catalog NumberACM96695

CAS Number96-69-5

CategoryPlastic Additives

4,4-Thiobis(6-tert-butyl-m-cresol)
Synonyms
5-TERT-BUTYL-4-HYDROXY-2-METHYLPHENYL SULFIDE;4,4-Thiobis(3-methyl-6-tert-butylphenol);4,4-THIO-BIS-(6-T-BUTYL-3-METHYLPHENOL);4,4-THIOBIS(2-T-BUTYL-5-METHYLPHENOL);4,4-THIOBIS(2-TERT-BUTYL-5-METHYLPHENOL);4,4-THIOBIS(6-TERT-BUTYL-M-CRESOL);4,4-THIOBIS(6-TERT-BUTYL-M-CRESOL);1,1-Thiobis(2-methyl-4-hydroxy-5-tert-butylbenzene)
Description
4,4'-thiobis(6-tert-butyl-m-cresol) appears as white or light gray to tan powder. (NTP, 1992);DryPowder; DryPowder, PelletsLargeCrystals;Light-gray to tan powder with a slightly aromatic odor.;Light-gray to tan powder with a slightly aromatic odor.
IUPAC Name
2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol
Molecular Weight
358.5g/mol
Molecular Formula
C22H30O2S
Canonical SMILES
CC1=CC(=C(C=C1SC2=CC(=C(C=C2C)O)C(C)(C)C)C(C)(C)C)O
InChI
InChI=1S/C22H30O2S/c1-13-9-17(23)15(21(3,4)5)11-19(13)25-20-12-16(22(6,7)8)18(24)10-14(20)2/h9-12,23-24H,1-8H3
InChI Key
HXIQYSLFEXIOAV-UHFFFAOYSA-N
Melting Point
302 °F (NTP, 1992);162.0 °C;150 °C;302°F;302°F
Flash Point
420 °F (NTP, 1992);420°F;420°F
Density
1.1 at 77 °F (NTP, 1992);1.10;1.10
Solubility
less than 0.1 mg/mL at 64° F (NTP, 1992);VERY SOL IN METHANOL (79%); SOL IN ACETONE (20%); SLIGHTLY SOL IN BENZENE (5%); VERY SLIGHTLY SOL IN WATER (0.08%);0.08%
Application
4,4-Thiobis(6-tert-butyl-m-cresol), often referred to as Antioxidant 300, serves a vital role in the rubber and plastics industries as a highly effective, non-polluting phenolic antioxidant. Characterized by its white to light gray powder form and aromatic odor, this compound is primarily employed to inhibit radical formation and prevent thermal decomposition, thereby safeguarding materials from oxidation and deterioration. It offers excellent thermal stability and weather resistance, with the added benefit of minimal impact on the electrical properties of end products. Compatible with materials such as polypropylene, ABS, polystyrene, and others, it is especially suitable for creating white, bright-colored, and transparent products. Moreover, its low volatility, low toxicity, and solubility in various organic solvents make it a versatile choice, even in applications involving food-contact plastics across numerous countries. Additionally, it enhances performance when used alongside carbon black and octadecyl alcohol.
Color/Form
LIGHT GREY POWDER;FINE WHITE CRYSTALS;Light gray to tan powder.
Complexity
396
Covalently-Bonded Unit Count
1
EC Number
202-525-2
Exact Mass
358.196651g/mol
Formal Charge
0
Hazard Statements
Xi,N
Heavy Atom Count
25
MeSH Entry Terms
4,4'-thiobis(6-t-butyl-m-cresol);4,4'-thiobis(6-tert-butyl-3-cresol)
Monoisotopic Mass
358.196651g/mol
NSC Number
35388
Odor
Slightly aromatic odor.
Other Experimental
SANTONOX R MELTING POINT: 161 °C
Rotatable Bond Count
4
RTECS Number
GP3150000
Safety Description
37/39-26-61-60-36/37
Supplemental Hazard Statements
H315-H317-H319-H373
UNII
3CA5G9822V
Vapor Pressure
6.3e-07 mm Hg at 158 °F (NTP, 1992);0.0000006 mmHg;0.0000006 mmHg
XLogP3
7.4
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