chemechemi

  Chrysophanol (CAS 478-43-3 ) is a natural anthraquinone compound extracted from plants such as rhubarb. Its chemical name is 1,8-dihydroxy-3-carboxyanthraquinone, with the molecular formula of C₁₅H₈O₆ and a molecular weight of 284.22.  Basic physical and chemical properties • Appearance: Brown needle-like crystals, which turn into yellow needle-like crystals upon sublimation.  Melting point: 321–322 °C.  Boiling point: Approximately 597.8 °C (760 mmHg).  • Density: Approximately 1.687 g/cm³.  • Solubility: Almost insoluble in water; soluble in alkaline solutions, pyridine; slightly soluble in ethanol, benzene, chloroform, ether, petroleum ether.  Main pharmacological activities and uses 1. Antitumor activity: It has inhibitory effects on melanoma in mice, Acanthamoeba cell culture, liver cancer, breast cancer, P388 leukemia cells, etc. 2. Antibacterial activity: It has inhibitory effects on Staphylococcus, Streptococcus, dysentery bacillus, etc. 3. ...

  In the chemical world, there is a seemingly ordinary yet highly functional compound - hexadecylamine ethanol ( CAS 544-31-0 ). As an endogenous fatty acid amide, this white crystalline solid is stable at room temperature, with a density of approximately 0.91 g/cm³ and a boiling point as high as 461.5℃.  It is not only widely used in the cosmetics industry, but also plays a significant role in multiple other fields such as medicine, textiles, and ink. Today, let's explore the wonderful world of this versatile compound together.  Who is  Hexadecylamine Ethanol ?  Hexadecylamine ethanol , also known as Palmidrol, has the chemical formula  C18H37NO2  and a molecular weight of 299.49 g·mol−1. It is a white crystal at room temperature, with a melting point of approximately 59-60℃. It needs to be stored at -20℃ to ensure stability.  The IUPAC name for this compound is N-(2-Hydroxyethyl)hexadecanamide, which clearly indicates its molecular structure cha...