100 mhz spectrometer

Manufactured by Bruker

Sourced in Germany

The 100 MHz spectrometer is a laboratory instrument designed to perform nuclear magnetic resonance (NMR) spectroscopy at a frequency of 100 MHz. It is used to analyze the structure and composition of chemical compounds by detecting the resonance of specific nuclei, such as hydrogen or carbon, within the sample. The core function of the 100 MHz spectrometer is to generate a magnetic field, excite the nuclei, and measure the resulting signal, which is then processed and displayed as a spectrum for interpretation by the user.

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Lab products found in correlation

Micromass q t of micromass spectrometer, by Waters Corporation (2 mentions) Dionex ultimate 3000 uhplc instrument, by Thermo Fisher Scientific (1 mentions) Frontier ft ir spectrophotometer, by PerkinElmer (1 mentions) 400 mhz spectrometer, by Bruker (1 mentions) Melting point b 540 apparatus, by Büchi (1 mentions) Agilent 1100 lc ms, by Agilent Technologies (1 mentions)

Close spelling variants of this product

AVANCE AV 400 (400/100 MHz) spectrometer 400 and 100 MHz spectrometer Avance 400/100 MHz NMR spectrometer 100 MHz NMR spectrometer Bruker spectrometers

7 protocols using 100 mhz spectrometer

Characterization of Organic Compounds

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Reagents and solvents were purchased from commercial sources and were used without further purification. All reaction were monitored by thin-layer chromatography (TLC) and visualized with UV light. Melting points were determined on an X-5 micromelting apparatus (Haohai Inc., Nanjing, China) and are uncorrected. ¹H NMR and ¹³C NMR spectra were recorded on a Bruker 400 and 100 MHz spectrometer (Ettlingen, Germany), respectively. High resolution mass spectra (HR-MS) were recorded on a Waters Micromass Q-T of Micromass spectrometer (Milford, MA, USA) by electrospray ionization (ESI). Final products were of >95% purity as analyzed by HPLC analysis (Phenomenex column, C18, 5.0 μm, 150 mm × 4.6 mm) on Dionex UltiMate 3000 UHPLC instrument from ThermoFisher (Waltham, MA, USA). The signal was monitored at 254 nm with a UV dector. A flow rate of 1.0 mL/min was used with a mobile phase of methanol in H₂O (80:20, v/v).

Li Z., Ding L., Li Z., Wang Z., Suo F., Shen D., Zhao T., Sun X., Wang J., Liu Y., Ma L., Zhao B., Geng P., Yu B., Zheng Y, & Liu H. (2019). Development of the triazole-fused pyrimidine derivatives as highly potent and reversible inhibitors of histone lysine specific demethylase 1 (LSD1/KDM1A). Acta Pharmaceutica Sinica. B, 9(4), 794-808.

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NMR and Mass Spectrometry Analysis

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Reagent and solvent were purchased from commercial sources and were used without further purification. ¹H NMR and ¹³C NMR spectra were determined on a Bruker 400 and 100 MHz spectrometer (Ettlingen, Germany), respectively. High resolution mass spectra (HRMS) were recorded on a Waters Micromass spectrometer (Milford, MA, USA) by electrospray ionization (ESI).

Ma L., Wang H., You Y., Ma C., Liu Y., Yang F., Zheng Y, & Liu H. (2020). Exploration of 5-cyano-6-phenylpyrimidin derivatives containing an 1,2,3-triazole moiety as potent FAD-based LSD1 inhibitors. Acta Pharmaceutica Sinica. B, 10(9), 1658-1668.

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Spectroscopic Characterization of Organic Compounds

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All chemicals and solvents were used directly as obtained commercially unless otherwise noted. The ¹H and ¹³C NMR spectra were recorded on a Bruker 400 and 100 MHz spectrometer, respectively. GCMS-QP2010 SE from an electron ionization (EI) source was used to obtained GC-MS Spectra. High-resolution mass spectra were recorded using A VG-70S magnetic sector mass spectrometer. The direct probe was used to introduce the samples and they were ionized via EI. Infrared spectroscopy was performed recorded using a PerkinElmer FTIR Spectrophotometer Frontier with ATR attached. Thin layer chromatography was employed to monitor the reaction progress. Commercially available 60 F₂₅₄ silica gel plates were employed for TLC and short wavelength UV light (254 nm) were utilized for effective visualization. Compounds were isolated via column chromatography using silica gel 60–120 mesh. All obtained melting points are uncorrected.

Cunningham C., Cloyd M., Phillips A., Khan S., Whalen K, & Kesharwani T. (2021). A One-Pot Successive Cyclization-Alkylation Strategy for the Synthesis of 2,3-Disubstituted Benzo[b]thiophenes. Organic & biomolecular chemistry, 19(18), 4107-4117.

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Comprehensive Analytical Characterization Protocol

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All commercial reagents were used without purification. Melting points were determined on a Mel-Temp 3.0 melting point apparatus, and are uncorrected. TLC analysis was carried out on silica gel 60 F254 precoated aluminum sheets using UV light for detection. ¹H and ¹³C NMR spectra were recorded on a Bruker 400 MHz spectrometer and Bruker 100 MHz spectrometer, respectively using the indicated solvents. Mass spectra were obtained from the Cairo University Mass Spectrometry Laboratory, Cairo, Egypt. Elemental analysis was performed at the Microanalysis Centre, Cairo University.

Morsy S.A., Farahat A.A., Nasr M.N, & Tantawy A.S. (2017). Synthesis, molecular modeling and anticancer activity of new coumarin containing compounds. Saudi Pharmaceutical Journal : SPJ, 25(6), 873-883.

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Spectroscopic Techniques for Compound Characterization

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The structure of the isolated compound was determined through various spectroscopic techniques such as Fourier transform infra red (FT-IR), Nuclear magnetic resonance (NMR), Gas chromatography-mass spectrometry (GC-MS), and Ultraviolet-visible spectroscopy (UV-Vis).
IR spectra of the isolated compound were recorded on a Nicolet-5700 FT-IR spectrophotometer (KBr disc). ¹H-NMR and ¹³C-NMR spectra were recorded on a Bruker 400 and 100 MHz spectrometer respectively, using DMSO-d₆ as the eluting solvent and TMS as an internal standard. The chemical shifts were expressed as δ (ppm) and the mass spectra were recorded using the Agilent-single Quartz GC-MS instrument. UV spectra were recorded on U-3310 UV-Vis spectrophotometer and structure of the isolated compound was determined as ethyl gallate (EG) (structure elucidation results provided in Section 3.2).

Bhat P., Patil V.S., Anand A., Bijjaragi S., Hegde G.R., Hegde H.V, & Roy S. (2023). Ethyl gallate isolated from phenol-enriched fraction of Caesalpinia mimosoides Lam. Promotes cutaneous wound healing: a scientific validation through bioassay-guided fractionation. Frontiers in Pharmacology, 14, 1214220.

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Characterization of Organic Compounds

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All melting points were obtained on a Büchi Melting Point B-540 apparatus (BüchiLabortechnik, Flawil, Switzerland) and were uncorrected. Mass spectra (MS) were taken in ESI mode on Agilent 1100 LC-MS (Agilent, palo Alto, CA, USA). ¹H NMR and ¹³C NMR spectra were performed using Bruker 400 MHz and 100 MHz spectrometers (Bruker Bioscience, respectively, Billerica, MA, USA) with TMS as an internal standard. Column chromatography was run on silica gel (200–300 mesh) from Qingdao Ocean Chemicals (Qingdao, Shandong, China). Unless otherwise noted, all materials were obtained from commercially available sources and were used without further purification.

Zhai X., Wang X., Wang J., Liu J., Zuo D., Jiang N., Zeng T., Yang X., Jing T, & Gong P. (2017). Discovery and Optimization of Novel 5-Indolyl-7-arylimidazo[1,2-a]pyridine-8-carbonitrile Derivatives as Potent Antitubulin Agents Targeting Colchicine-binding Site. Scientific Reports, 7, 43398.

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Synthesis and Characterization of Analogs

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Reagents and solvents were purchased from commercial sources and were used without further purification. The reaction process was monitored by TLC (Thin Layer chromatography) with silica gel plates (thickness 250 μm, Indicator F-254). The target analogs were purified by column chromatography with silica gel (300-400 meshes). Melting points were determined on an X-5 micromelting apparatus and were uncorrected. 1 H NMR and 13 C NMR spectra were recorded on a Bruker 400 MHz and 100 MHz spectrometers respectively. High-resolution mass spectra (HRMS) were recorded on a Waters Micromass Q-T of Micromass spectrometer by electrospray ionization (ESI)

Xu C., Zhou W., Dong G., Qiao H., Peng J., Jia P., Li Y., Liu H., Sun K, & Zhao W. (2020). Novel [1,2,3]triazolo[4,5-d]pyrimidine derivatives containing hydrazone fragment as potent and selective anticancer agents. Bioorganic chemistry, 105.

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