4,4-Biphenyldicarboxylic acid diethyl ester
Synonyms Dimethyl biphenyl-4,4'-dicarboxylate, diethyl biphenyl-4,4'-dicarboxylate, 4,4'-dicarboxy biphenyl diethyl ester
| Item | Details |
| CAS No. | 47230-38-6 |
| Molecular Formula | C18H18O4 |
| Molecular Weight | 298.33 |
| Appearance | White to off-white crystalline powder |
| Melting Point | 138～140℃ |
| Boiling Point | Approx. 370℃ (decomposes under atmospheric pressure), 200℃ (0.1kPa reduced pressure) |
| Density | 1.22 g/cm3 (25℃) |
| Solubility | Insoluble in water, slightly soluble in methanol, ethanol and acetone; soluble in DMF, DMSO, chloroform, ethyl acetate and other organic solvents |
| Stability | Stable under normal temperature and pressure; decomposes under intense heat, hydrolyzes into 4,4'-biphenyldicarboxylic acid when contacting strong alkalis; avoid contact with strong oxidants and strong alkalis |
| HS Code | 2917399090 (Other aromatic polycarboxylic acid esters) |
| Packing | 25kg fiber drum / woven bag lined with PE inner bag |
| Storage Conditions | Store in cool and dry warehouse with sealed packaging; isolate air, strong oxidants and strong alkalis; keep away from heat and open flame, store at room temperature away from light and prevent moisture-induced hydrolysis |
| Personal Protection | Wear dust mask, nitrile rubber gloves and goggles; avoid inhalation of dust and direct contact with skin and eyes |
| Waste Disposal | Collect and dispose uniformly as organic hazardous waste; strictly prohibit direct discharge into sewers or natural water bodies, do not discard arbitrarily |
| Application Fields | Primary use: core monomer for high-performance polymers; modifier and functional additive for polymer materials; fine chemical intermediate for pharmaceuticals; core raw material for optoelectronic functional materials; precursor for MOFs / coordination polymers; intermediate for dyes and fluorescent materials; organic synthetic intermediate |
