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413135

Sigma-Aldrich

2,2′-Methylenebis(6-tert-butyl-4-methylphenol)

Synonym(s):

2,2′-Methylenebis(4-methyl-6-tert-butylphenol), 2,2′-Methylenebis(6-tert-butyl-p-cresol), 6,6-Methylenebis(2-tert-butyl-4-methylphenol)

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About This Item

Linear Formula:
CH2[C6H2[C(CH3)3](CH3)OH]2
CAS Number:
Molecular Weight:
340.50
EC Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

form

powder

Quality Level

mp

123-127 °C (lit.)

SMILES string

Cc1cc(Cc2cc(C)cc(c2O)C(C)(C)C)c(O)c(c1)C(C)(C)C

InChI

1S/C23H32O2/c1-14-9-16(20(24)18(11-14)22(3,4)5)13-17-10-15(2)12-19(21(17)25)23(6,7)8/h9-12,24-25H,13H2,1-8H3

InChI key

KGRVJHAUYBGFFP-UHFFFAOYSA-N

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General description

2,2′-Methylenebis(6-tert-butyl-4-methylphenol) is a phenolic antioxidant commonly used in increasing the oxidation stability in rubber and plastic industries.

Application

It may be incorporated into the bromobutyl rubber(BIIR) matrix to enhance the overall thermo-reversibility of dicyclopentadiene dicarboxylic acid (DCPDCA) cross-linked BIIR. It may also be used as an antioxidant which shows a higher oxidation stability in distilled biodiesel.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Inhibition of the sarcoplasmic and endoplasmic calcium pump by bis(2-hydroxy-3-tert-butyl-5-methyl)methane, (bis-phenol).
G R Brown et al.
Biochemical Society transactions, 21(2), 106S-106S (1993-05-01)
A Takagi et al.
The Journal of toxicological sciences, 19(2), 77-88 (1994-05-01)
General toxicity studies on 2,2'-methylenebis(4-methyl-6-tert-butylphenol) (MBMBP) were conducted using male and female Wistar rats. LD50 values were greater than 5 g/kg BW by oral administration for both sexes. Diarrhea was observed until 5 days. In the subchronic test, rats were
Rancimat and PetroOxy oxidation stability measurements of rapeseed oil methyl ester stabilized with hydrazides and antioxidants.
Bar F, et al.
Fuel: The Science and Technology of Fuel and Energy, 232(2), 108-113 (2018)
Yuchao Wang et al.
Polymers, 12(1) (2020-01-08)
A stabilizer called 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (GM) was mixed in acrylonitrile butadiene styrene (ABS) with the same amount of 9-bis(octadecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (DSPDP), octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate (Irganox 1076) and tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate (Irganox 3114) to investigate the influence of additives on the antiaging effect of
Developmental toxicity of synthetic phenolic antioxidants to the early life stage of zebrafish.
Yang X, et al.
The Science of the Total Environment, 643, 559-568 (2018)

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