4,4'-Methylenebis(2,6-di-tert-butylphenol)
Synonym(s):4,4′-Methylenebis(2,6-di-tert-butylphenol)
- CAS NO.:118-82-1
- Empirical Formula: C29H44O2
- Molecular Weight: 424.66
- MDL number: MFCD00008822
- EINECS: 204-279-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-24 21:11:45
What is 4,4'-Methylenebis(2,6-di-tert-butylphenol)?
Description
bis-BHT (118-82-1) is a potent antioxidant. Cell permeable.
Chemical properties
light yellow crystalline
The Uses of 4,4'-Methylenebis(2,6-di-tert-butylphenol)
Antioxidant.
Definition
ChEBI: 4,4'-Methylenebis(2,6-di-tert-butylphenol) is a diarylmethane.
What are the applications of Application
4,4'-Methylenebis(2,6-di-tert-butylphenol), also known as H2-4DBP, could be used as a ligand to react with sets of M(OR)x and MRx. The ligand possesses more flexibility than OBzP or catecholate derivatives, and the para-OH makes it of interest for controlled alcoholysis. This compound has several characteristics, including (i) the ortho position possesses the sterically hindering t-butyl group which will assist in minimizing oligomerization, (ii) the para linkage prevents chelation of the 4DBP ligand to the metal upon coordination, and (iii) may act as a valuable model for complexation behavior of the plastic precursor bisphenol-A [BPA; 4,4' -(propane-2,2-diyl)diphenol] that has become of recent concern[2].
Flammability and Explosibility
Non flammable
References
1) Amorati et al. (2003), Antioxidant activity of 0-bisphenols: the role of intramolecular hydrogen bonding; J. Org. Chem. 68 5198.
[2] T. Boyle, Daniel T Yonemoto, L. Steele. “Synthesis and characterization of 4,4′-methylenebis (2,6-di-tert-butylphenol) derivatives of a series of metal alkoxides and alkyls.” Journal of Coordination Chemistry 65.1(2012): 487–505.
Properties of 4,4'-Methylenebis(2,6-di-tert-butylphenol)
Melting point: | 155-159 °C(lit.) |
Boiling point: | 289 °C40 mm Hg(lit.) |
Density | 0.99 g/cm3 (20℃) |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.4875 (estimate) |
Flash point: | 289°C/40mm |
storage temp. | Store below +30°C. |
solubility | <0.0001g/l |
form | solid |
pka | 12.03±0.40(Predicted) |
color | White |
Water Solubility | 31.9ng/L at 20℃ |
BRN | 1916919 |
Stability: | Stable for 2 years from date of purchase as supplied. Solutions are not stable. Solutions must be made fresh and used within 1 working day. |
CAS DataBase Reference | 118-82-1(CAS DataBase Reference) |
NIST Chemistry Reference | Phenol, 4,4'-methylenebis[2,6-bis(1,1-dimethylethyl)-(118-82-1) |
EPA Substance Registry System | Phenol, 4,4'-methylenebis[2,6-bis(1,1-dimethylethyl)- (118-82-1) |
Safety information for 4,4'-Methylenebis(2,6-di-tert-butylphenol)
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4,4'-Methylenebis(2,6-di-tert-butylphenol)
InChIKey | MDWVSAYEQPLWMX-UHFFFAOYSA-N |
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