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• 试剂商城
• 直接询价

分类

• {SNA} Alkenes, Building Blocks, Chemical Synthesis, Cyclic, Organic Building Blocks
• Alkenes, Building Blocks, Chemical Synthesis, Cyclic, Organic Building Blocks
• {uni_hamburg} no charge; carbocycle; alicycle; 5ring; 1fragment

产品应用

• 用于有机合成，作树脂的交联剂 ;气相色谱对比样品。

相关文献及参考

• Beil. 5 ,IV,209
• Aldrich MSDS 1 , 532:D / Corp MSDS 1 (1), 986:D / FT-IR 2 (1), 61:B / FT-IR 1 (1), 40:C / FT-NMR 1 (1), 57:B / IR-Spectra (3), 30:E / RegBook 1 (1), 39:A / Sax 6 , 844 / Sigma FT-IR 1 (2), 417:D / Structure Index 1 , 5:D:4 / Vapor Phase 3 , 58:C
• Short: II/24B Title: Molecular Constants mostly from Microwave, Molecular Beam, and Sub-Doppler Laser Spectroscopy: Rotational, Centrifugal Distortion and Related Constants of Diamagnetic Asymmetric Top Molecules Author: Demaison, J.; Vogt, J.; Wlodarczak, G. Editor: Hüttner, W. Source: Landolt-Börnstein, New Series Volume: II/24B Year: 2000 Keyword: Diamagnetics Diatomics; Linear Symmetric Rotors; Molecular Constants; Molecules ISBN: 3-540-65345-7 ISBN: 978-3-540-65345-5 Internet Resource: DOI:10.1007/b58835 RefComment: VIII, 525 pages. Hardcover Abstract: Volume II/24 presents the spectroscopic data on diamagnetic and paramagnetic molecules as well as on molecular ions and radicals up to date considering the publications up to and partly including 1997. The spectroscopic information collected in this volume has been obtained principally from gas phase microwave measurements. Volume II/24 is a supplement to volumes II/4, II/6, II/14, and II/19 and is planned to appear in five subvolumes, the last of which will contain the substance index taking into account all molecules worked at since 1967 in the volumes mentioned and will provide cross references to and between all tables of these. The present subvolume II/24B contains an introduction and tables of rotational and centrifugal distortion constants of asymmetric-top molecules, i.e. data which roughly specifies the frequencies of the rotational transitions of these types of rotors.
• Short: II/25D Title: Structure Data of Free Polyatomic Molecules: Molecules Containing Five or More Carbon Atoms Author: Graner, G.; Hirota, E.; Iijima, T.; Kuchitsu, K.; Ramsay,

安全信息

GHS Symbol

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 1590 uL/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   30,470,1969

TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 16000 ppm/4H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   30,470,1969

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2140 uL/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   30,470,1969

其他信息

• 环戊烯价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 LA1102701 环戊烯¤ 100ml 454元 2011/08/23 L0316001 环戊烯¤ 100ml 424元 2011/04/16 C1617 环戊烯 Cyclopentene 25ML 211元
• Sigma Aldrich:142-29-0(sigmaaldrich)
• 理化性质:无色液体。相对分子质量68.13。相对密度0.7720。熔点135.08℃。沸点44.24℃。折射率1.4225。闪点-50℃。燃点385℃。粘度0.2mPa·s(20℃)。不溶于水，溶于乙醇、乙醚、苯和石油醚等有机溶剂。蒸气与空气形成爆炸混合物，爆炸极限3.4%～8.5%(体积分数)。临界温度233℃。临界压力4.64MPa。环戊烯对皮肤及粘膜有很强的刺激性，使皮肤红肿，使角膜浑浊，误食会引起胃部疼痛及呕吐。环戊烯含有双键，化学活性主要发生在双键上。易聚合，生成聚戊烯，是橡胶原料;催化加氢，生成环戊烷;催化氧化，生成环戊二烯;与环戊二烯在200℃下可进行迪-阿(Diels-Alder) 反应，生成2，3-二氢桥环双环戊二烯;在低温下与四氯化碳反应，生成1，2-二氯环戊烷;在催化剂作用下，在120℃及压力下，可进行羰基加成，生成甲酰基环戊烷(环戊基甲醛);长时期曝露在空气中，吸收氧，被氧化;若在110℃及1.0MPa下，与硝酸钾水溶液进行反应，可制得戊二酸;除双键的反应活性外，戊环上的氢也可被取代，如卤化、烷基化、酰基化等。大鼠经口LD5024000mg/kg。工作场所最高允许浓度0.15mg/m3。
• 毒性分级:中毒
• Acros
• 储运特性:库房通风低温干燥; 与氧化剂、酸类分开存放; 不宜久储, 以防聚合
• 图谱信息:环戊烯(142-29-0)核磁图( 13 CNMR) 环戊烯(142-29-0)红外图谱(IR1) 环戊烯(142-29-0)核磁
• 用途一:用作共聚单体，也
• 灭火剂:干粉、干砂、二氧化碳、泡沫、1211灭火剂
• TCI Shanghai:环戊烯 Cyclopente
• MOL 文件:142-29-0.mol
• 下游产品:茂 --> 皮脂酸 --> 2-丙烯基-3-甲基-4-羟基-2-环戊烯-1-酮 --> 雷米普利 --> : 仑氨西林 仑氨西林 --> 列腺素 E1 --> 盐酸氯氨酮 --> 氯氨酮相关物质A --> 邻氯苯基环戊基酮 --> 罗沙前列醇 --> 1,2-环氧环戊烷 --> 乙基环戊烯醇酮
• Alfa Aesar:环戊烯,98+% Cyclopentene, 98+%(142-29-0)
• 方法一:1.最早曾用环戊醇在380-400℃下，用氧化铝为催化剂进行气相脱水制取。2.BASF-Erd?chemie法以石油裂解的副产C5馏分为原料，经加热，使其中的环戊二烯二聚成双环戊二烯，用N-甲基吡咯烷酮抽提出来，再经裂解成环戊二烯，通过选择加氢成环戊烯后，加进含环戊二烯的物料中，再经抽提、蒸馏及分馏，得环戊烯和异戊二烯。3.Bayer法C5馏分经热处理，得双环戊二烯，再经解聚成环戊二烯。最后经催化加氢而成环戊烯。使用钯系催化剂，Cr或Ti为助催化剂，Li-Al尖晶石为载体。4.IFP法为法国石油化学研究所研制的催化剂进行上项操作制取环戊烯的方法。催化剂由Cd2Ti-（OC6H5）2和Li（t-BuO）3AlH构成，转化率99.99%，选择性97%。
• 上游原料:酸性氧化铝 --> 茂 --> 二聚环戊二烯 --> 异戊二烯 --> 环戊醇
• 类别:易燃液体
• Alfa Aesar:环戊烯,98+% Cyclope
• 溶于乙醇、乙醚、苯、丙酮和氯仿， 不溶
• 用途三:用于有机合成，作树脂的交联剂 ;气相色谱对比样品。
• 爆炸物危险特性:与空气混合可爆
• {Che
• 急性毒性:口服- 大鼠 LD50: 1656 毫克/公斤
• 可燃性危险特性:遇明火、高温、氧化剂易燃; 燃烧产生刺激烟雾