8.18447

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

for synthesis

• Synonym(s): 2,2′-Methylenebis(4-methyl-6-tert-butylphenol), 2,2′-Methylenebis-(6-tert-butyl-4-methyl-phenol), Bis(3-tert-butyl-2-hydroxy-5-methylphenyl)-methan
• Linear Formula: (2-(OH)-3-(CH₃)₃C-5-(CH₃)C₆H₂)₂CH₂
• CAS Number: 119-47-1
• Molecular Weight: 340.50
• MDL number: MFCD00043641
• UNSPSC Code: 12352104
• EC Index Number: 204-327-1
• NACRES: NA.22

Properties

• vapor pressure: <1 hPa
• Quality Level: 200
• Assay: ≥96.0% (GC)
• form: crystals
• autoignition temp.: 350 °C
• potency: 4880 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• pH: 4-7 (20 °C in H₂O, aqueous suspension)
• mp: 125-132 °C (Lit.)
• transition temp: flash point 185 °C
• solubility: practically insoluble 0.007 mg/L
• density: 1.07 g/cm³ at 20 °C
• bulk density: 300 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C23H32O2/c1-14-9-16(20(24)18(11-14)22(3,4)5)13-17-10-15(2)12-19(21(17)25)23(6,7)8/h9-12,24-25H,13H2,1-8H3
• InChI key: KGRVJHAUYBGFFP-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 96.0 % (a/a)
Melting range (lower value): ≥ 125 °C
Melting range (upper value): ≤ 132 °C
Identity (IR): passes test

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H360F
• Precautionary Statements: P201 - P202 - P280 - P308 + P313 - P405 - P501
• Hazard Classifications: Repr. 1B
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flash Point(F): 365.0 °F - Pensky-Martens closed cup
• Flash Point(C): 185 °C - Pensky-Martens closed cup