8.42857

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

for synthesis

• Synonym(s): 4,4′-Methylenebis(2,6-di-tert-butylphenol)
• Empirical Formula (Hill Notation): C₂₉H₄₄O₂
• CAS Number: 118-82-1
• Molecular Weight: 424.66
• MDL number: MFCD00008822
• UNSPSC Code: 12352104
• EC Index Number: 204-279-1
• NACRES: NA.22

Properties

• vapor pressure: <0.1 hPa ( 25 °C)
• Quality Level: 200
• Assay: ≥98.0% (GC)
• form: crystals
• potency: >5000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• bp: 217 °C/1 hPa
• mp: 153-156 °C
• transition temp: flash point 222 °C
• solubility: <0.0001 g/L
• density: 0.99 g/cm³ at 20 °C
• storage temp.: 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
• InChI key: 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).

Analysis Note

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

Safety Information

• Hazard Statements: H413
• Precautionary Statements: P273 - P501
• Hazard Classifications: Aquatic Chronic 4
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 431.6 °F
• Flash Point(C): 222 °C