Name | Antioxidant 245 |
Synonyms | Irganox 245 Primanox245 Antioxidant 245 Ciba Irganox 245 Irganox 245(Ciba SC) (oxy-2,1-ethanediyl)ester Triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate Ethylenbis(oxyethylen)bis[3-(5-tert.-butyl-4-hydroxy-m-tolyl)propionat] triethylene glycol bis-3-(3-t-butyl-4-hydroxy-5-methylphenyl) propionate 3-tert-Butyl-4-hydroxy-5-methylphenylpropionic acid triethyleneglycol ester benzenepropanoicacid,3-(1,1-dimethylethyl)-4-hydroxy-5-methyl-,1,2-ethanediy 2-[2-(2-hydroxyethoxy)ethoxy]ethyl 2,2-bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate ethane-1,2-diylbis(oxyethane-2,1-diyl) bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate] Benzenepropanoicacid,3-(1,1-dimethylethyl)-4-hydroxy-5-methyl-,1,2-ethanediylbis(oxy-2,1-ethanediyl)ester |
CAS | 36443-68-2 |
EINECS | 253-039-2 |
InChI | InChI=1/C31H46O7/c1-20-16-22(18-24(26(20)33)29(3,4)5)31(9,28(35)38-15-14-37-13-12-36-11-10-32)23-17-21(2)27(34)25(19-23)30(6,7)8/h16-19,32-34H,10-15H2,1-9H3 |
Molecular Formula | C34H50O8 |
Molar Mass | 586.77 |
Density | 1.0397 (rough estimate) |
Melting Point | 79-81oC |
Boling Point | 602.88°C (rough estimate) |
Flash Point | >150 °C |
Water Solubility | 104μg/L at 23℃ |
Solubility | Chloroform (Slightly), Methanol (Slightly) |
Vapor Presure | 2.93E-16mmHg at 25°C |
Appearance | Solid |
Color | White to Off-White |
pKa | 11.44±0.25(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.6000 (estimate) |
Risk Codes | 52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | 61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
LogP | 4.7 at 23℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
overview | antioxidant 245 is an efficient asymmetric hindered phenol antioxidant. its outstanding characteristics are high antioxidant efficiency, low volatility, good oxidation and coloring resistance, significant synergistic effect with auxiliary antioxidants (such as thioester or phosphite), and good weather resistance with light stabilizer. |
characteristics | antioxidant 245 is a hindered phenolic antioxidant that prevents thermal oxygen degradation of materials in synthesis, processing and final use. Antioxidant 245 odorless, low volatility, good color stability and extraction resistance. |
use | the antioxidant has good compatibility with polymers and high thermal oxygen resistance. it is suitable for high impact polystyrene, ABS resin, AS resin, MBS resin, polyvinyl chloride, polyoxymethylene, polyamide, polyurethane, hydroxylated styrene-butadiene rubber and styrene-butadiene latex, etc. It is also a chain terminator (0.02% ~ 0.05%) in PVC polymerization. In the field of polyurethane materials, it can be used in RIM, TPU, spandex, polyurethane adhesive, sealant and other products. It can be used with auxiliary stabilizers (such as thioesters, phosphites, phosphonites, internal lipids), light stabilizers and their functional stabilizers. |
category | toxic substances |
flammability hazard characteristics | smoke stimulated by thermal decomposition |
storage and transportation characteristics | warehouse ventilation and low temperature drying |
fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |