Overview
3-Biphenyl, also known as m-biphenyl, is an aromatic hydrocarbon consisting of two benzene rings connected at the meta position. It is widely used as an intermediate in the synthesis of more complex organic compounds, including pharmaceuticals, agrochemicals, and liquid crystals. Its stable aromatic structure makes it valuable in various chemical reactions. The compound is typically synthesized through cross-coupling reactions or derived from coal tar. Due to its versatility, 3-biphenyl is a key building block in organic chemistry, particularly in the development of advanced materials and specialty chemicals.
Physical and Chemical Properties
3-Biphenyl is a white to off-white crystalline solid with a melting point of 89-91 °C and a boiling point of 312 °C. It has a density of 1.04 g/cm³ and is soluble in common organic solvents like ethanol and ether but insoluble in water. The compound is stable under normal conditions but can form explosive mixtures with air when finely dispersed. Chemically, 3-biphenyl exhibits typical aromatic hydrocarbon behavior, participating in electrophilic substitution reactions. Its meta-substituted structure influences its reactivity compared to ortho- or para-substituted biphenyls, making it useful for specific synthetic pathways.
Main Applications
3-Biphenyl is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and liquid crystals. In the pharmaceutical industry, it serves as a precursor for active pharmaceutical ingredients (APIs) and other biologically active compounds. Its role in liquid crystal production is particularly notable, as it contributes to the stability and performance of display materials. The compound is also employed in agrochemicals, where it acts as a building block for pesticides and herbicides. Additionally, 3-biphenyl is utilized in research and development for creating novel organic materials with specialized properties.
Safety and Storage
3-Biphenyl is classified as harmful if swallowed or inhaled and can cause skin and eye irritation. Proper personal protective equipment (PPE), including gloves and goggles, should be worn when handling the substance. Adequate ventilation is essential to avoid inhalation of dust or vapors. Storage should be in a cool, dry place, away from light and oxidizing agents. The compound is flammable, and containers must be tightly sealed to prevent moisture absorption and contamination. Spills should be cleaned up immediately using appropriate absorbents and disposed of in accordance with local regulations.
B2B Procurement Guide
When procuring 3-biphenyl, buyers should verify the CAS number (92-52-4) and request a certificate of analysis (CoA) to confirm purity levels, which typically range from 98% to 99.5%. Suppliers should provide material safety data sheets (MSDS) and comply with international safety standards such as REACH or OSHA. Price varies based on quantity and purity, with bulk purchases often offering cost advantages. Buyers are advised to source from reputable manufacturers with a track record of consistent quality and reliable delivery. Consider logistical factors such as packaging (e.g., 25 kg drums) and shipping conditions to ensure product integrity upon arrival.
Related Manufacturers
- 主营：聚乙二醇、聚丙二醇、叔胺、76350、伯胺、染料中间体
- 主营：聚乙烯亚胺、三硫代碳酸钠40%、六氯环三磷腈、三甘醇二异辛酸酯3G8、TS-1钛硅分子筛、5-甲基靛红、烷基苯磺酸酯、苯基次磷酸钠、甲巯咪唑、吡啶硫酮锌、焦磷酸哌嗪、热敏材料、油酸甲酯、曲酸
- 主营：石油醚、四氢噻吩、顺酐、联苯甲酸厂家、苯酐
- 主营：多聚甲醛、环己胺、正硅酸乙酯28 40、正十二烷、异丙醇、无水乙醇、铬酸酐、亚氯酸钠、二甲基甲酰胺、硫酸羟胺、戊二酸二甲酯、邻苯二甲酸二乙酯、二甲苯、二氯甲烷、环己烷、四氯乙烯、环己酮、环氧氯丙烷、甲醇、甲酸、乙腈、苯酚、乙二醇乙醚醋酸酯、醋酸丁酯
- 主营：阻燃剂、催化剂、水杨酸、联苯硼酸批发、二苯基、酰亚胺、正磷酸、烟酰胺、曲酸粉、氯化锌、异丙醇、化妆品、初油酸、脂肪醇、生石灰、甲基异、碳酸锌、碳酸锂、活性炭、乙二胺、三氮唑、着色剂、环己酮、防冻液、抗氧剂、亚磷酸
- 主营：三硫代碳酸钠、聚乙烯亚胺、三乙二醇二异辛酸酯、红色素-16、L-丙交酯、石油酯-T50、巯基苯并噻唑钠、乙交酯、多元醇苯甲酸酯、热压敏染料、光稳定剂、高分子降解材料
- 主营：聚苯胺、脯氨酸甲酯盐酸盐、苄基三甲基氯化铵
- 主营：甘氨酸、滑石粉、三甘醇、生桐油、水杨酸、葡聚糖、石英砂、薄荷脑、苯甲醇、平平加、丁酸钠、磷酸氢、扩散剂、漂白精、硬脂酸、消泡剂、蛋白胨、硫化锌、磷酸铁、黄糊精、硫酸钾、磷酸铝、磷铁粉、雷米邦、氧化铅
- 主营：杜仲素、对位酯、丙烯酸酯、4甲基3联苯甲酸、二氧化硫脲、乙基麦芽酚、饲料添加剂、油酸基硬脂酸、二苯基硅二醇
- 主营：化学品、香精香料、试剂、联苯溴化镁、中间体、有机硅、橡胶树脂、催化剂、纳米材料
- 主营：氯化氢乙醇、二苯基硅二醇、甲基磺酸铋、联苯甲醇、阻燃剂DDP、萃取剂、HTPB、防老剂
- 主营：冲压油、异构烷烃、异构十一烷、联苯基羧酸、医药中间体、清洗剂、缩水甘油醚、农药中间体
- 主营：抗氧剂、氧化剂、紫外线吸收剂、荧光增白剂、催化剂、还原剂、缩合剂、光引发剂、酶制剂、成核剂、生物缓冲液、表面活性剂、检测试剂、光电材料中间体、改性剂、指示剂、多肽、染料中间体、固醇系列、酶溶液
- 主营：侧柏叶油、当归提取物、益智仁精油、联苯硼酸、羟丙基硅油、侧柏叶精油、茴香提取液、墨旱莲提取物、接骨木提取液
- 主营：杀菌剂、单宁酸、抗氧剂、2-吲哚甲酸、交联剂、咪唑钾、中间体、咪唑、绝缘材料、氧化钛铝、离子液体、日化原料、苯基膦酸、氟甲基磺、甲基咪唑啉、乳化稳定剂、油漆催干剂