6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol
Antioxidant 425;2,2'-Methylenebis(4-ethyl-6-tert-butylphenol)
CAS: 88-24-4
Molecular Formula: C25H36O2
6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol - Names and Identifiers
| Name | Antioxidant 425 2,2'-Methylenebis(4-ethyl-6-tert-butylphenol) |
| Synonyms | Irganox425 Antioxidant 425 LABOTEST-BB LT00159285 Methylenebisethylbutylphenol 2,2'-Methylenebis(4-ethyl-6-tert-butylphenol) di(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methane 2,2'-methanediylbis(6-tert-butyl-4-ethylphenol) BIS(3-TERT-BUTYL-5-ETHYL-2-HYDROXYPHENYL)METHANE 6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol 2-tert-butyl-6-(3-tert-butyl-5-ethyl-2-hydroxy-benzyl)-4-ethyl-phenol 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxy-phenyl)methyl]-4-ethyl-phenol |
| CAS | 88-24-4 |
| EINECS | 201-814-0 |
| InChI | InChI=1/C25H36O2/c1-9-16-11-18(22(26)20(13-16)24(3,4)5)15-19-12-17(10-2)14-21(23(19)27)25(6,7)8/h11-14,26-27H,9-10,15H2,1-8H3 |
6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol - Physico-chemical Properties
| Molecular Formula | C25H36O2 |
| Molar Mass | 368.55 |
| Density | 1.010 |
| Melting Point | 119-122°C(lit.) |
| Boling Point | 458.86°C (rough estimate) |
| Flash Point | 187.5°C |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Powder |
| Color | White to Off-White |
| pKa | 11.37±0.48(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.4894 (estimate) |
| MDL | MFCD00026296 |
| Use | Used to prevent natural rubber, synthetic rubber and synthetic resin due to oxygen, heat, ultraviolet, metal compounds caused by aging |
6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 2 |
| RTECS | SL9800000 |
| HS Code | 29072990 |
| Toxicity | LD50 oral in rat: > 10gm/kg |
6,6′-Di-tert-butyl-4,4′-diethyl-2,2′-methylendiphenol - Reference Information
| LogP | 8.95 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used to prevent natural rubber, synthetic rubber and its synthetic resin from oxygen, heat, ultraviolet, aging caused by metal compounds |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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