产品名称:二环己胺 CAS:101-83-7 分子式:C12H23N 分子量: 181.32InChI:InChI=1S/C12H23N/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h11-13H,1-10H2InChIKey: XBPCUCUWBYBCDP-UHFFFAOYSA-NSmiles:C1(NC2CCCCC2)CCCCC1MS 1HNMR 13CNMR IR1 IR2 Raman in CDCl3 ...
分子式:C7H5I2NO3 分子量:404.93 InChI:InChI=1S/C7H5I2NO3/c8-4-1-10(3-6(11)12)2-5(9)7(4)13/h1-2H,3H2,(H,11,12) InChIKey:PVBALTLWZVEAIO-UHFFFAOYSA-N Smiles:C1N(CC(O)=O)C=C(I)C(=O)C=1I MS 1HNMR 13CNMR
13CNMR实验操作步骤 1H NMR 实验操作步骤 1．测试前的准备 1.1 样品的配制 ①使用干净和干燥的样品管以免污染样品 ②取少量样品放入管中 ③加入0.5mL 氘代溶剂，摇动，使样品溶解 ④使用量高器来确定样品的放置高度，待测 2．谱仪的调整 1.1 仪器的启动 ①打开谱仪谱仪24h不间断运行，一般情况下不需要开启...
13C NMR of naphthalenesmathematical modelingThe prediction of the 13 C NMR signals for derivatives of naphthalene has been investigated using mathematical modeling techniques. Two empirical multiple regression models which utilize the field, resonance, and Charton's steric parameters together with molar ...
高频核磁共振谱仪Resolution : Protein NMR 900 MHz. 600 MHz. Bruker超高场磁体投放市场时间 1995800MH 26、z 1998750MHz WB 2001900MHz 2004 900MHz US2 2004900MHz US2 WB 2006800MHz USPLUS 2006850MHz US2 1992750MHz 2006950MHz US2 2009850MHz US2 WB 2009850MHz USPLUS 20091000MHz 81超高场...
第2期赵伟等:内苁蓉多糖SPA结构的GC—MS及"C—NMR分析37 1.2多糖的提取,纯化及SPA的纯度鉴定 用小火反复煮提干燥的肉苁蓉茎,合并滤液后浓缩至挂壁,然后用乙醇沉淀得到粗 多 糖,采用超滤分级,SephadexG一75柱层析纯化,得到均一组分SPA,经高压液相色
1H, 13C NMR spectra of polymer samples were recorded on a JEOL JNM-EX 270 spectrometer (FT, 300 MHz for 1H; 75.5 MHz for 13C). The spectra of ethylene–1-hexene copolymers were measured in 1,1,2,2-tetrachloroethane-d2 at 120 °C, while the spectra of poly(l-hexene)s were record...
3.11.3.2 13C MAS NMR Spectrum Solid-state carbon NMR spectroscopy was performed on a Bruker ASX 400 spectrometer with a 100.623 MHz resonance frequency. For all solid-state spectra, MAS was applied at a frequency of 4000 Hz in a 7-mm rotor and direct excitation of 13C nuclei was induced...
上海甄准生物提供2H和13C标记的药物及API标准品。 产品优势: 产品线全; 全方位分析数据包,包括所有的光谱分析和实验文件; 提供1HNMR和13CNMR(400MHz)化学纯度; HPLC-MS校准; HPLC-MS-MS校准; 可作内标; 可提供定制; 产品信息: 甄准编号 中文品名 英文品名 CAS No. 标记含量 规格 ...
Quantitative 13C NMR Spectra Quantitative 13C NMR spectra were recorded on a Bruker (Wissembourg, France) AVANCE 400 Fourier Transform spectrometer operating at 100.13 MHz for 13C, equipped with a 5 mm probe, Magnetochemistry 2017, 3, 34 8 of 10 in CDCl3 with all shifts referred to ...