Products Fumaric acid is used as an excipient in medicinal products. Active ingredients are also derived from it. Structure and properties Fumaric acid (C4H4O4, Mr = 116.1 g/mol) is a dicarboxylic acid. It exists as a white, crystalline and odorless powder or as crystals and is sparingly soluble in water. The pharmacopoeia defines it in … Fumaric Acid
Definition Alcohols are a group of organic compounds with the general chemical structure R-OH. The hydroxyl group (OH) is attached to an aliphatic carbon atom. Aromatic alcohols are called phenols. They are a separate group of substances. Alcohols can be obtained as derivatives of water (H 2 O) in which a hydrogen atom has been … Alcohols
Definition Ethers are organic molecules with the general structure R1-O-R2, where R1 and R2 are identical for symmetrical ethers. The radicals can be aliphatic or aromatic. Cyclic ethers exist, such as tetrahydrofuran (THF). Ethers can be prepared using, for example, Williamson’s synthesis: R1-X + R2-O–Na+ R1-O-R2 + NaX X stands for halogens Nomenclature Trivial names … Ether
Definition and structure Fatty acids are lipids consisting of a carboxy group and a hydrocarbon chain that is usually unbranched and may contain double bonds. The figure shows palmitic acid with 16 carbon atoms (C16): they typically exist in nature free or in the form of glycerides. Glycerides consist of a molecule of glycerol esterified … Fatty Acids
Products Oxalic acid is available as a pure substance in pharmacies and drugstores. Various veterinary medicines (antiparasitics) containing oxalic acid are available, for example, in the form of powders and solutions. Oxalic acid has been used against varroa mites since the 1980s. Structure and properties Oxalic acid (C2H2O4, Mr = 90.0 g/mol) is a natural … Oxalic Acid
Products Salicylic acid is available in combination with other active ingredients in a number of externally applied medicines. It is also contained in numerous extemporaneous preparations that must be prepared for customers in a pharmacy. Corresponding manufacturing instructions can be found, for example, in the DMS (e.g., salicylaseline). Structure and properties Salicylic acid or -hydroxybenzoic … Salicylic Acid
