413283

1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene

99%

• Synonym(s): 2,4,6-Tris(3,5-di-tert -butyl-4-hydroxybenzyl)mesitylene, 3,3′,3′′,5,5′,5′′-Hexa-tert -butyl-α,α′,α′′-(mesitylene-2,4,6-triyl)tri-p -cresol, 4,4′,4′′-[(2,4,6-Trimethyl-1,3,5-benzenetriyl)tris(methylene)]tris[2,6-bis(1,1-dimethylethyl)phenol
• Linear Formula: (CH₃)₃C₆[CH₂C₆H₂[C(CH₃)₃]₂OH]₃
• CAS Number: 1709-70-2
• Molecular Weight: 775.20
• EC Number: 216-971-0
• MDL number: MFCD00026284
• UNSPSC Code: 12162002
• PubChem Substance ID: 24865854
• NACRES: NA.23

Properties

• assay: 99%
• form: powder
• mp: 248-250 °C (lit.)
• SMILES string: Cc1c(Cc2cc(c(O)c(c2)C(C)(C)C)C(C)(C)C)c(C)c(Cc3cc(c(O)c(c3)C(C)(C)C)C(C)(C)C)c(C)c1Cc4cc(c(O)c(c4)C(C)(C)C)C(C)(C)C
• InChI: 1S/C54H78O3/c1-31-37(22-34-25-40(49(4,5)6)46(55)41(26-34)50(7,8)9)32(2)39(24-36-29-44(53(16,17)18)48(57)45(30-36)54(19,20)21)33(3)38(31)23-35-27-42(51(10,11)12)47(56)43(28-35)52(13,14)15/h25-30,55-57H,22-24H2,1-21H3
• InChI key: VSAWBBYYMBQKIK-UHFFFAOYSA-N

Description

General description

1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene(HEMA) is an antioxidant that can be used to prevent the oxidative degradation of plastics.[1][2]

Application

HEMA can be used as an antioxidant in the polycondensation of poly(isosorbide maleate-co-succinate) and poly(isosorbide maleate) to prepare biobased based unsaturated polyester.[3] It may also be used in the preparation of water soluble polyesters which can potentially be used as in drug delivery and industrial coatings.[4]

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302,H315,H319,H335
• pcodes: P261 - P264 - P271 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: 609.8 °F
• flash_point_c: 321 °C
• ppe: dust mask type N95 (US), Eyeshields, Gloves