8.42857

4,4′-Methylenebis(2,6-di-tert-butylphenol)

for synthesis

• Synonym(e): 4,4′-Methylenebis(2,6-di-tert-butylphenol)
• Empirische Formel (Hill-System): C₂₉H₄₄O₂
• CAS-Nummer: 118-82-1
• Molekulargewicht: 424.66
• MDL-Nummer: MFCD00008822
• UNSPSC-Code: 12352104
• EG-Index-Nummer: 204-279-1
• NACRES: NA.22

Eigenschaften

• Dampfdruck: <0.1 hPa ( 25 °C)
• Qualitätsniveau: 200
• Assay: ≥98.0% (GC)
• Form: crystals
• Wirksamkeit: >5000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• bp: 217 °C/1 hPa
• mp (Schmelzpunkt): 153-156 °C
• Übergangstemp.: flash point 222 °C
• Löslichkeit: <0.0001 g/L
• Dichte: 0.99 g/cm³ at 20 °C
• Lagertemp.: 2-30°C
• InChI: 1S/C29H44O2/c1-26(2,3)20-14-18(15-21(24(20)30)27(4,5)6)13-19-16-22(28(7,8)9)25(31)23(17-19)29(10,11)12/h14-17,30-31H,13H2,1-12H3
• InChIKey: MDWVSAYEQPLWMX-UHFFFAOYSA-N

Beschreibung

Anwendung

• Improvement in biolubricant performance: The use of 4,4′-Methylenebis(2,6-di-tert-butylphenol) as an antioxidant additive significantly enhances the oxidative stability and performance of new biolubricant formulations, marking it as an effective solution in sustainable lubrication technology (Quinchia et al., 2011).


• Study of bioaccumulation potential in soils: Research utilized 4,4′-Methylenebis(2,6-di-tert-butylphenol) to investigate its bioaccumulation potential in field-collected soils, demonstrating its environmental interaction and mobility which are crucial for risk assessments in ecological contexts (Princz et al., 2014).


• Antioxidant activity and intramolecular interactions: A study explored the antioxidant activity of o-bisphenols like 4,4′-Methylenebis(2,6-di-tert-butylphenol), focusing on intramolecular hydrogen bonding and its role in enhancing radical scavenging efficiency, pivotal for designing more effective antioxidants (Amorati et al., 2003).

Hinweis zur Analyse

Gehalt (GC, Fl.%): ≥ 98.0 % (a/a)
Schmelzbereich (unterer Wert): ≥ 153 °C
Schmelzbereich (oberer Wert): ≤ 156 °C
Identität (IR): entspricht

Sicherheitshinweise

• H-Sätze: H413
• P-Sätze: P273 - P501
• Gefahreneinstufungen: Aquatic Chronic 4
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): 431.6 °F
• Flammpunkt (°C): 222 °C