Chloroform d1

Manufactured by Avantor

Sourced in United States

Chloroform-d1 is a deuterated chloroform solvent used for nuclear magnetic resonance (NMR) spectroscopy. It is a clear, volatile liquid with a characteristic chloroform odor.

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Lab products found in correlation

Methanol, by Avantor (3 mentions) Hplc grade acetonitrile, by Avantor (3 mentions) Barnstead micropure system, by Thermo Fisher Scientific (3 mentions) Formic acid, by Honeywell (3 mentions) Chrysin, by Carl Roth (2 mentions) Hexane, by Carl Roth (2 mentions) Linoleic acid, by Carl Roth (2 mentions) Apigenin, by Merck Group (2 mentions) Abietic acid, by Merck Group (2 mentions) Pinocembrin 7 methyl ether, by Carl Roth (2 mentions) Ethyl acetate, by Carl Roth (2 mentions) Choline chloride, by Thermo Fisher Scientific (1 mentions) Citric acid monohydrate, by Carl Roth (1 mentions) Urea, by Thermo Fisher Scientific (1 mentions) Glycerol, by Carl Roth (1 mentions) 1 2 propanediol, by Thermo Fisher Scientific (1 mentions) D sorbitol, by Thermo Fisher Scientific (1 mentions) D fructose, by Carl Roth (1 mentions) D glucose, by Merck Group (1 mentions) Acetone, by Avantor (1 mentions)

4 protocols using chloroform d1

Extraction and Isolation of Natural Compounds

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Solvents for different steps in analyses were partially denatured ethanol (AustrAlco, Spillern, Austria) for extraction, hexane, ethyl acetate (both Carl Roth, Karlsruhe, Baden-Württemberg, Germany) and methanol (VWR, Radnor, PA, USA) for open column chromatography and TLC, chloroform-d₁ (VWR) and pyridine-d₅ (Armar, Döttingen, Aargau, Switzerland) for NMR.
HPLC mobile phases consisted of ultrapure water prepared from deionized water with a Barnstead MicroPure system (Thermo Fisher Scientific, Waltham, MA, USA), HPLC-grade acetonitrile (VWR) and formic acid for LC-MS (Honeywell, Charlotte, NC, USA).
Reference substances were abietic acid contributed by the Department of Pharmaceutical Chemistry, University of Graz, Austria, apigenin (Sigma-Aldrich, St. Louis, MO, USA), chrysin, pinocembrin-7-methyl ether (pinostrobin), linoleic acid (all Carl Roth) and oleic acid (Fluka, Buchs, St. Gallen, Switzerland).

Alperth F., Schneebauer A., Kunert O, & Bucar F. (2023). Phytochemical Analysis of Pinus cembra Heartwood—UHPLC-DAD-ESI-MSn with Focus on Flavonoids, Stilbenes, Bibenzyls and Improved HPLC Separation. Plants, 12(19), 3388.

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NADES Preparation and Characterization

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For NADES preparation, chemicals choline chloride, 1,2-propanediol, DL-malic acid, malonic acid, D-sorbitol, urea (all Thermo Fisher Scientific, Waltham, MA, USA), citric acid monohydrate, glycerol, D(−)-fructose (all Carl Roth, Karlsruhe, Germany), D(+)-glucose (Merck, Darmstadt, Germany) and methylurea (Acros Organics, Geel, Belgium) were used. Methylurea had a specified purity of 97%, and all other reagents were at least 98% or higher. In HPLC mobile phases, ultrapure water prepared from deionized water with a Barnstead MicroPure system (Thermo Fisher Scientific, Waltham, MA, USA), HPLC-grade acetonitrile (VWR, Radnor, PA, USA) and formic acid (Honeywell, Charlotte, NC, USA) were used. The solvent for NMR analyses was chloroform-d₁ (VWR). Other solvents used in this study were partly denatured ethanol (96% v/v, AustrAlco, Spillern, Austria) methanol (≥99.9%, Carl Roth) and dichloromethane (≥99.5%, Carl Roth). Reference substance spilanthol was isolated in the course of this work with a purity of 97% as determined by NMR.

Alperth F., Feistritzer T., Huber M., Kunert O, & Bucar F. (2024). Natural Deep Eutectic Solvents for the Extraction of Spilanthol from Acmella oleracea (L.) R.K.Jansen. Molecules, 29(3), 612.

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Extraction and Isolation of Natural Compounds

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Synthesis of Ionic Liquids and Cellulose Composites

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The compounds used for the synthesis, 1-ethyl-3-methylimidazolium chloride (>99%), methyl iodide (99.5%), potassium carbonate (≥99%), silver benzoate (99%), and sodium salicylate (≥99.5%), were received from Sigma Aldrich. Silver nitrate (≥99.5%) was purchased from Carl Roth. 1,2,3-Triazole (98%) and ethyl bromide (98%) were purchased from abcr GmbH. The solvents tetrahydrofuran (≥99.9%), dimethyl sulfoxide–d

_{6}

(99.8 atom-% D), acetone (≥99.5%), chloroform–d

_{1}

(99.8 atom-% D), and methanol (≥99%) were received from VWR, Armar Europa GmbH, Sigma Aldrich, and Carl Roth (water content below 100 ppm in all cases). Microcrystalline cellulose with a particle size of 20

μ

m and a molar mass of 37 kg mol

^{- 1}

(as determined by viscosimetry) was purchased from Sigma Aldrich.

Brehm M., Radicke J., Pulst M., Shaabani F., Sebastiani D, & Kressler J. (2020). Dissolving Cellulose in 1,2,3-Triazolium- and Imidazolium-Based Ionic Liquids with Aromatic Anions. Molecules, 25(15), 3539.

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