2,2',6,6'-Tetra-tert-butyl-4,4'-methylendiphenol

Bezeichnung:2,2',6,6'-Tetra-tert-butyl-4,4'-methylendiphenol

CAS-Nr118-82-1

Englisch Name:4,4'-Methylenebis(2,6-di-tert-butylphenol)

CBNumberCB0206363

SummenformelC29H44O2

Molgewicht424.66

MOL-Datei118-82-1.mol

Synonyma

2,2',6,6'-Tetra-tert-butyl-4,4'-methylendiphenol

2,2',6,6'-Tetra-tert-butyl-4,4'-methylendiphenol physikalisch-chemischer Eigenschaften

Schmelzpunkt	155-159 °C(lit.)
Siedepunkt	289 °C40 mm Hg(lit.)
Dichte	0.99 g/cm3 (20℃)
Dampfdruck	0Pa at 25℃
Brechungsindex	1.4875 (estimate)
Flammpunkt	289°C/40mm
storage temp.	Store below +30°C.
Löslichkeit	<0.0001g/l
pka	12.03±0.40(Predicted)
Aggregatzustand	solid
Farbe	White
Wasserlöslichkeit	31.9ng/L at 20℃
BRN	1916919
Stabilität	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.
InChIKey	MDWVSAYEQPLWMX-UHFFFAOYSA-N
LogP	8.9 at 25℃
CAS Datenbank	118-82-1(CAS DataBase Reference)
NIST chemische Informationen	Phenol, 4,4'-methylenebis[2,6-bis(1,1-dimethylethyl)-(118-82-1)
EPA chemische Informationen	Phenol, 4,4'-methylenebis[2,6-bis(1,1-dimethylethyl)- (118-82-1)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38-38-37-36
S-Sätze:	26-36
WGK Germany	1
RTECS-Nr.	SL9650000
TSCA	Yes
HS Code	29072990
Toxizität	LD50 oral in rat: > 24gm/kg

Gefahreninformationscode (GHS)

4,4'-Methylenebis(2,6-di-tert-butylphenol) Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Beschreibung
bis-BHT (118-82-1) is a potent antioxidant. Cell permeable.
Chemische Eigenschaften
light yellow crystalline
Verwenden
Antioxidant.
Definition
ChEBI: 4,4'-Methylenebis(2,6-di-tert-butylphenol) is a diarylmethane.
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
Einzelnachweise
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.

4,4'-Methylenebis(2,6-di-tert-butylphenol) Upstream-Materialien And Downstream Produkte

2,2',6,6'-Tetra-tert-butyl-4,4'-methylendiphenol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

118-82-1, 4,4'-Methylenebis(2,6-di-tert-butylphenol) Verwandte Suche:

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