新污染物聚焦——环境中的液晶单体
时间: 2024-03-01
作者: 百灵威
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液晶单体(Liquid Crystal Monomer, LCM)是一类主要用于液晶显示器的关键材料，通常含有联苯或环己烷骨架，同时兼有氟、氯、溴、苯环、氰基等多种官能团[1]。
LCMs 在液晶显示器中通常未与基材键合，故容易释放进入环境。研究发现，LCMs在沉积物、垃圾渗滤液、室内外灰尘、空气和生物样品中均有检出[2-3]。一些 LCMs 化合物具有高环境持久性、高生物蓄积性和较高的长距离迁移能力，对生态环境及人类健康具有潜在风险[4]。
百灵威可提供30余种现货LCMs用于液晶单体的实验室研究，同时提供配套样品前处理试剂耗材。
LCMs
| 品名 | CAS | 货号 |
|---|---|---|
| 1-Ethoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl)benzene, 97.5% 1-乙氧基-2,3-二氟-4-(反-4-丙基环己基)苯 | 174350-05-1 | 1582726 |
| 3,4,5-Trifluoro-4'-(trans-4-propylcyclohexyl)biphenyl, 98% 3,4,5-三氟-4'-(反-4-丙基环己基)联苯 | 132123-39-8 | 946258 |
| 3,4-Difluoro-4'-(trans-4-pentylcyclohexyl)biphenyl, 97% 3,4-二氟-4'-(反式-4-戊基环己基)联苯 | 134412-17-2 | 973502 |
| 3,4-Difluoro-4'-(trans-4-propylcyclohexyl)biphenyl, 98% 3,4-二氟-4'-(反式-4-丙基环己基)联苯 | 85312-59-0 | 939960 |
| 4'-(Octyloxy)-4-biphenylcarbonitrile, 99% 4'-(辛氧基)-4-氰基联苯 | 52364-73-5 | 559187 |
| 4-(trans-4-Vinylcyclohexyl)benzonitrile, 98% 4-(反-4-乙烯基环己基)苯甲腈 | 96184-42-8 | 1171998 |
| 4-Butoxy-4'-cyanobiphenyl, 98% 4-丁氧基-4'-氰基联苯 | 52709-87-2 | 423511 |
| 4-Butyl-4'-cyanobiphenyl, 98% 4-正丁基-4'-氰基联苯 | 52709-83-8 | 997164 |
| 4-Cyano-4'-ethoxybiphenyl, 98% 4-乙氧基-4'-氰基联苯 | 58743-78-5 | 316709 |
| 4-Cyano-4'-propoxy-1,1'-biphenyl, 98% 4-氰基-4'-丙氧基-1,1'-联苯 | 52709-86-1 | 991095 |
| 4-Cyanophenyl 4-N-butylbenzoate, 99% 4-丁基苯甲酸-4-氰基苯酯 | 38690-77-6 | 152480 |
| 4-Cyano-4'-pentyloxybiphenyl, 99% 4-氰基-4'-戊氧基联苯 | 52364-71-3 | 131208 |
| 4-Cyano-4'-n-hexyloxybiphenyl, 97% 4'-(己氧基)-4-联苯甲腈 | 41424-11-7 | 302135 |
| 4-Cyano-4'-heptyloxybiphenyl, 98% 4-氰基-4'-庚氧基联苯 | 52364-72-4 | 610510 |
| 4-Cyano-4'-ethylbiphenyl, 99% 4-氰基-4'-乙基联苯 | 58743-75-2 | 449532 |
| 4-Cyano-4'-n-pentylbiphenyl, 99% 正戊基联苯氰 | 40817-08-1 | 406797 |
| 4-Cyano-4'-heptylbiphenyl, 99% 4-氰基-4'-庚基联苯 | 41122-71-8 | 116912 |
| 4-Cyano-4''-pentyl-p-terphenyl, 98% 4-氰基-4''-戊基对三联苯 | 54211-46-0 | 969710 |
| 4-Ethyl-4'-(trans-4-propylcyclohexyl)biphenyl, 98% 4-乙基-4'-(反-4-丙基环己基)联苯 | 84540-37-4 | 978652 |
| 4'-n-Octylbiphenyl-4-carbonitrile, 99% 4'-正辛基联苯基-4-甲腈 | 52709-84-9 | 597699 |
| 4-Pentylphenyl 4-propylbenzoate, 97% 4-丙基苯甲酸对戊基苯酚酯 | 50649-60-0 | 292798 |
| N,N'-Bisbenzylidenebenzidine, 97% N,N'-二苯亚甲基联苯胺 | 6311-48-4 | 285868 |
| trans,trans-4-(4-Methylphenyl)-4'-vinylbicyclohexyl, 98% 反,反-4-(4-甲苯基)-4'-乙烯基双环己烷 | 155041-85-3 | 1171996 |
| trans,trans-4'-Ethyl-4-(3,4,5-trifluorophenyl)bicyclohexyl, 98% 反,反-4'-乙基-4-(3,4,5-三氟苯基)双环己烷 | 139215-80-8 | 1493524 |
| trans,trans-4'-Propyl-4-(3,4,5-trifluorophenyl)bicyclohexyl, 98% 反,反-4'-丙基-4-(3,4,5-三氟苯基)双环己烷 | 131819-23-3 | 1171983 |
| trans,trans-4-(3,4-Difluorophenyl)-4'-propylbicyclohexyl, 98% 反,反-4-(3,4-二氟苯基)-4'-丙基双环己烷 | 82832-57-3 | 795804 |
| trans,trans-4'-Butyl-4-(3,4-difluorophenyl)bicyclohexyl, 98% 反,反-4'-丁基-4-(3,4-二氟苯基)双环己烷 | 82832-58-4 | 795805 |
| trans,trans-4-(3,4-Difluorophenyl)-4'-pentylbicyclohexyl, 98% 反,反-4-(3,4-二氟苯基)-4'-戊基双环己烷 | 118164-51-5 | 795806 |
| trans,trans-4'-Propyl-4-(4-trifluoromethoxyphenyl)bicyclohexyl, 98% 反,反-4'-丙基-4-(4-三氟甲氧基苯基)双环己烷 | 133937-72-1 | 1493876 |
| trans,trans-4-(4-Ethoxy-2,3-difluorophenyl)-4'-n-propylbicyclohexyl, 98% 反,反-4'-(4-乙氧基-2,3-二氟苯基)-4-n-丙基双环己烷 | 123560-48-5 | 1494100 |
相关试剂耗材
| 品名 | CAS | 货号 |
|---|---|---|
| Celite 545RV 硅藻土 | 68855-54-9 | 227605 |
| Cyclohexane, 99%, ACS reagent 环己烷 | 110-82-7 | 943484 危化品 |
| Dichloromethane, 99.5%, ACS reagent 二氯甲烷 | 75-09-2 | 949699 危化品 |
| Ethyl acetate, 99%, for analysis 乙酸乙酯 | 141-78-6 | 966734 危化品 |
| Methanol, 99.5%, for analysis 甲醇 | 67-56-1 | 949300新 危化品 |
| n-Hexane, 95% 正己烷 | 110-54-3 | 939298 危化品 |
| Sodium sulfate, 99%, for analysis 硫酸钠 | 7757-82-6 | 953522 |
| 2,2,4-Trimethylpentane, 99%, HPLC grade 2,2,4-三甲基戊烷 | 540-84-1 | 987390 危化品 |
| HIRSCHMANN MEAS. CYLINDER, 10ML,LOW TYPE, AMBER GRAD | / | Z650587 |
| Hydrophilic PTFE syringe filter, non-sterile, 13mm, 0.2µm, red, 200 pcs/pack 亲水 PTFE 针式过滤器 | / | 970251 |
| Sample vial, 2mL, 9 mm, clear glass screw thread vials with write-on spot 样品瓶 | / | 922054 |
| Short screw thread vial caps and septa, 9 mm blue pp cap, centre hole 6 mm, pre-slit red PTFE/white silicone septum 短螺纹样品瓶组合盖垫 | / | 909718 |
| Single-channel mechanical pipettor, Volume range: 100 - 1000 μL, Increment: 5.0 μL 单道手动可调移液器 | / | 1122427 |
| Pipette tips, 1000 μL, blue, low Retention, 1000 tips/pack 移液器吸头 | / | 1438562 |
参考文献
- 张霄.苯甲酸苯酯类液晶单体在水中的光化学转化研究[D].东北师范大学,2022.
- 苏慧君.液晶单体（LCMs）[D].南京理工大学,2022.
- 杨倩玲,周婷婷,翁冀远等.新型污染物液晶单体的环境行为和人体暴露研究进展[J].生态毒理学报,2023,18(01):160-173.
- 金其,姚倩,林锡华等.液晶单体的环境效应与健康风险研究进展[J].生态毒理学报,2023,18(01):29-38.
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