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Anhydrous ethyl alcohol

Manufactured by Sinopharm
Sourced in China

Anhydrous ethyl alcohol is a colorless, flammable liquid that is commonly used in laboratory settings. It serves as a solvent, reagent, and fuel. The product is 99.5% pure and meets the requirements for use in various scientific and industrial applications.

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2 protocols using anhydrous ethyl alcohol

1

Synthesis and Characterization of NaN3 Compound

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NaN3 (DDN) was bought from Xiya Reagent. 4‐Chlorobenzaldehyde was from Energy Chemical. Hydrochloric acid (HCl, analytical grade) was purchased from Zhuzhou Quartz Glass Co. LTD, and anhydrous ethyl alcohol (EtOH) was from Sinopharm Group Chemical Reagent Co. LTD (Shanghai, China). 1H and 13C NMR experiments were recorded on a Bruker AV‐400 MHz spectrometer (Bruker) with tetramethylsilane (TMS) as the internal standard when DMSO‐d6 was used as a solvent. Chemical shifts are expressed in δ (ppm) and coupling constants (J) in Hz. High‐resolution (ESI) MS spectra were recorded using an Agilent 6550 iFunnel Q‐TOF LC/MS system. HPLC analysis was used to determine the purity (>98%) of the compound with a YMC Pack ODS‐A (5 μm, 250 × 4.6 mm; YMC Co. Ltd) column.
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2

Antioxidant and Tyrosinase Inhibition

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Iodized salt (food grade) was obtained from China National Salt Industry Corporation (Shanghai, China). 2,2-Diphenyl-1-picrylhydrazyl (DPPH), 3,4-dihydroxy-l-phenylalanine (l-DOPA), and tyrosinase were purchased from Sigma-Aldrich (Shanghai, China). Diethyl ether, disodium hydrogen phosphate, monosodium phosphate, anhydrous ethyl alcohol, dimethyl sulfoxide, potassium bichromate, potassium iodide, chloroform, and acetic acid were purchased from Sinopharm (Shanghai, China). Instant cornstarch was obtained from Shanghai Rongshi (Shanghai, China). 2,6-Di-tert-butyl-4-methylphenol (BHT) and ascorbic acid (vitamin C) were purchased from Yingyuan (Shanghai, China) and Fine Chemicals Institute (Shanghai, China), respectively. All commercial essential oils were purchased from Pan'an Tianlan fragrance Co., Ltd (Zhejiang, China), manufactured via steam distillation. All commercial chemicals were used without further purification.
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