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Pentacosane

Manufactured by Merck Group
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Sourced in Germany, United Kingdom

Pentacosane is a long-chain aliphatic hydrocarbon compound with the molecular formula C25H52. It is a colorless, waxy solid that is commonly used in various laboratory applications.

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Lab products found in correlation

Tetracosane, by Merck Group (5 mentions) Octadecane, by Merck Group (5 mentions) Eicosane, by Merck Group (5 mentions) Heneicosane, by Merck Group (5 mentions) Tricosane, by Merck Group (4 mentions) Decane, by Merck Group (3 mentions) Dodecane, by Merck Group (3 mentions) Tetradecane, by Merck Group (3 mentions) Hexadecane, by Merck Group (3 mentions) Tridecane, by Merck Group (3 mentions) Nonane, by Merck Group (3 mentions) Nonadecane, by Merck Group (3 mentions) Octacosane, by Merck Group (3 mentions) Triacontane, by Merck Group (3 mentions) Undecane, by Merck Group (3 mentions) Heptadecane, by Merck Group (3 mentions) Hexacosane, by Merck Group (3 mentions) Octane, by Merck Group (2 mentions) Benzoic acid, by Merck Group (2 mentions) Linalool, by Merck Group (2 mentions)

6 protocols using pentacosane

1

Synthesis and Characterization of Long-Chain Alkanes

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Chemical standards of tricosane (99%) and pentacosane (99%) were purchased from Sigma-Aldrich Inc. (St. Louis, MO, USA) and BeanTown Chemical (Hudson, NH, USA), respectively. Hexacosane (99%) and heptacosane (99%) were obtained from Alfa Aesar (Ward Hill, MA, USA). (6Z,9Z)-heptadeca-6,9-diene was synthesized as described above.
Faal H., Silk P.J., Mayo P.D, & Teale S.A. (2021). Courtship behavior and identification of a sex pheromone in Ibalia leucospoides (Hymenoptera: Ibaliidae), a larval parasitoid of Sirex noctilio (Hymenoptera: Siricidae). PeerJ, 9, e12266.
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2

Alkane Compounds Acquisition and Characterization

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Heptane (99%), nonane (99%), undecane (≥99%), dodecane (99%), tridecane (≥99%), tetradecane (≥99%), pentadecane (≥99%), hexadecane, heptadecane (99%), octadecane (99%), nonadecane (99%), eicosane (99%), heneicosane (≥99.5%), docosane (99%), tricosane (99%), tetracosane (99%), pentacosane (99%), hexacosane (99%), octacosane (99%), and triacontane (99%) were purchased from Sigma-Aldrich (Darmstadt, Germany). Octane (98%) and decane (≥99%) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Acetone and hexane were of HPLC grade and purchased from Elite Advanced Materials Sdn. Bhd. (Selangor, Malaysia). Ultrapure water (18.2 MΩ cm−1) was purified by a Millipore Milli-Q system (Bedford, MA, USA).
Zaid A., Haw X.R., Alkatib H.H., Sasidharan S., Marriott P.J, & Wong Y.F. (2022). Phytochemical Constituents and Antiproliferative Activities of Essential Oils from Four Varieties of Malaysian Zingiber officinale Roscoe against Human Cervical Cancer Cell Line. Plants, 11(10), 1280.
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3

Volatile Organic Compounds Attracting T. pretiosum

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The response of T. pretiosum was verified by mixing the following compounds obtained from Sigma-Aldrich (Gillingham, UK): linalool (97%), hexan-2-ol (99%), 4hydroxy-4-methylpentanone (99%), 6-methyl-5-hepten-2one (99%), nonanal (95%), decanal (98%), octadecanal (99%), nonanoic acid (99%), benzoic acid (99.5%), eicosane (99%), heneicosane (98%), dodecosane (99%), tetracosane (99%), pentacosane (99%), hexacosane (99%), heptacosane (99%), octadecane (99%), nonacosane (99%), (Z)-9-tetradecenyl acetate (Z9-14 OAC) (97%), and (Z)-11-hexadecenyl acetate (Z11-16 OAC) (95%). The total mixture (TM) was made using all compounds except the acetates at the same concentration (0.01 lg ll À1 ) in equal amounts. The TM volume tested was 10 ll contrasted with the same solvent hexane. The responses of T. pretiosum to hexane solutions of Z9-14:OAC or Z11-16 OAC, at concentrations of 1, 0.1, and 0.01 lg ll À1 , in the volume of 10 ll were compared with hexane (10 ll).
Vargas C.C., Redaelli L.R., Sant’Ana J., Blassioli‐Moraes M.C., Laumann R.A, & Borges M. (2021). Influence of semiochemicals present in the scales of Spodoptera frugiperda on chemotactic behavior of Trichogramma pretiosum. Entomologia experimentalis et applicata, 169(4).
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4

Volatile Organic Compounds Attracting T. pretiosum

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The response of T. pretiosum was verified by mixing the following compounds obtained from Sigma-Aldrich (Gillingham, UK): linalool (97%), hexan-2-ol (99%), 4hydroxy-4-methylpentanone (99%), 6-methyl-5-hepten-2one (99%), nonanal (95%), decanal (98%), octadecanal (99%), nonanoic acid (99%), benzoic acid (99.5%), eicosane (99%), heneicosane (98%), dodecosane (99%), tetracosane (99%), pentacosane (99%), hexacosane (99%), heptacosane (99%), octadecane (99%), nonacosane (99%), (Z)-9-tetradecenyl acetate (Z9-14 OAC) (97%), and (Z)-11-hexadecenyl acetate (Z11-16 OAC) (95%). The total mixture (TM) was made using all compounds except the acetates at the same concentration (0.01 lg ll À1 ) in equal amounts. The TM volume tested was 10 ll contrasted with the same solvent hexane. The responses of T. pretiosum to hexane solutions of Z9-14:OAC or Z11-16 OAC, at concentrations of 1, 0.1, and 0.01 lg ll À1 , in the volume of 10 ll were compared with hexane (10 ll).
Vargas C.C., Redaelli L.R., Sant’Ana J., Blassioli‐Moraes M.C., Laumann R.A., & Borges M. (2021). Influence of semiochemicals present in the scales of Spodoptera frugiperda on chemotactic behavior of Trichogramma pretiosum. Entomologia Experimentalis et Applicata, 169(4), 393-402.
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5

Hydrocarbon Retention Indices for EOs

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For determination of the retention indices (RI), the following hydrocarbons were used: octane (≥99%), nonane (99%), decane (≥99%), undecane (≥99%), dodecane (99%), tridecane (≥99%), tetradecane (≥99%), hexadecane (≥99%), heptadecane (99%), octadecane (99%), nonadecane (99%), eicosane (99%), heneicosane (≥99.5%), docosane (99%), tricosane (99%), tetracosane (99%), pentacosane (99%), hexacosane (99%), octacosane (99%), and triacontane (99%) purchased from Merck KGaA (Darmstadt, Germany). Hexane (GC grade) purchased from Thermo Fisher Scientific GmbH (Bremen, Germany) was used for dilution of the EOs.
Todorova V., Ivanova S., Georgieva Y., Nalbantova V., Karcheva-Bahchevanska D., Benbassat N., Savova M.S., Georgiev M.I, & Ivanov K. (2022). Chemical Composition and Histochemical Localization of Essential Oil from Wild and Cultivated Rhaponticum carthamoides Roots and Rhizomes. Plants, 11(15), 2061.
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6

Hydrocarbon Retention Index Analysis

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The following hydrocarbons were used to determine the retention indices (RIs): nonane (99%), decane (≥99%), undecane (≥99%), dodecane (99%), tridecane (≥99%), tetradecane (≥99%), hexadecane (≥99%), heptadecane (99%), octadecane (99%), nonadecane (99%), eicosane (99%), heneicosane (≥99.5%), tricosane (99%), tetracosane (99%), pentacosane (99%), octacosane (99%), and triacontane (99%), and they were purchased from Merck KGaA (Darmstadt, Germany). GC-grade hexane was used for diluting the essential oils, purchased from Thermo Fisher Scientific GmbH (Bremen, Germany). Fluorescein (3′,6′-dihydroxy-3H-spiro [2-benzofuran-1,9′-xanthen]-3-one) (CAS 2321-07-5), AAPH (2,2′-azobis-(2-methylpropionamidine)-dihydrochloride) (CAS 2997-92-4), and trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid) (CAS 53188-07-1) were purchased from Sigma-Aldrich (Darmstadt, Germany).
Karcheva-Bahchevanska D., Benbassat N., Georgieva Y., Lechkova B., Ivanova S., Ivanov K., Todorova V., Peychev L., Peychev Z, & Denev P. (2023). A Study of the Chemical Composition, Antioxidant Potential, and Acute Toxicity of Bulgarian Tanacetum vulgare L. Essential Oil. Molecules, 28(16), 6155.
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