8.42857

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

for synthesis

• Synonyme(s) : 4,4′-Methylenebis(2,6-di-tert-butylphenol)
• Formule empirique (notation de Hill): C₂₉H₄₄O₂
• Numéro CAS: 118-82-1
• Poids moléculaire : 424.66
• Numéro MDL: MFCD00008822
• Code UNSPSC : 12352104
• Numéro de classement CE : 204-279-1
• Nomenclature NACRES : NA.22

Propriétés

• Pression de vapeur: <0.1 hPa ( 25 °C)
• Niveau de qualité: 200
• Pureté: ≥98.0% (GC)
• Forme: crystals
• Puissance: >5000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• Point d'ébullition: 217 °C/1 hPa
• Pf: 153-156 °C
• Température de transition: flash point 222 °C
• Solubilité: <0.0001 g/L
• Densité: 0.99 g/cm³ at 20 °C
• Température de stockage: 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
• Clé InChI: MDWVSAYEQPLWMX-UHFFFAOYSA-N

Description

Application

• 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).

Remarque sur l'analyse

Assay (GC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 153 °C
Melting range (upper value): ≤ 156 °C
Identity (IR): passes test

Informations sur la sécurité

• Mentions de danger: H413
• Conseils de prudence: P273 - P501
• Classification des risques: Aquatic Chronic 4
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 431.6 °F
• Point d'éclair (°C): 222 °C