"Aminobenzoic" Natural Recordings by Native Speakers
Aminobenzoic acid is a compound consisting of a benzene ring with a carboxylic acid group and an amino group attached to it. It is also known as para-aminobenzoic acid (PABA) when the amino group is located at the para position relative to the carboxyl group. PABA is commonly used as a sunscreen agent, as it absorbs ultraviolet light, and is also found in some vitamins and bacteria. It has various applications in pharmaceuticals, dyes, and chemical synthesis.
1. The sunscreen contains para-aminobenzoic acid (PABA), which helps protect the skin from harmful ultraviolet rays.
2. In organic chemistry, aminobenzoic acids are derivatives of benzoic acid where one or more hydrogen atoms have been replaced with amino groups, and they have various applications in pharmaceuticals.
3. Some individuals may experience allergic reactions to PABA found in certain sunscreens, leading to rashes or irritations, necessitating the use of PABA-free alternatives.
4. Aminobenzoic acids can be synthesized through different chemical reactions, such as the electrophilic substitution of benzene, and they play a role in the synthesis of dyes and other pharmaceutical compounds.
5. In the 1940s, PABA was widely used as an oral antibiotic, but its use has since declined due to the development of more effective and less allergenic antibiotics.
Amines are organic compounds derived from ammonia (NH3) where one or more hydrogen atoms have been replaced by alkyl or aryl groups. They are characterized by the presence of a nitrogen atom bonded to one or more carbon atoms and can exist as primary, secondary, or tertiary amines depending on the number of carbon atoms attached to the nitrogen. Amines have various applications, including use as pharmaceuticals, dyes, solvents, and as building blocks in the synthesis of other organic compounds.
Amino-cyclitols are a group of compounds that consist of a cyclitol, which is a sugar-like alcohol with a cyclic structure, bearing one or more amino groups (NH2) attached to its carbon skeleton. These compounds can be found in various natural sources and have shown potential biological activities, such as antimicrobial, antiviral, and antioxidant properties. They are also of interest in pharmaceutical and biochemical research due to their unique chemical structures and potential applications in drug development.
Amino-levulinic acid is an organic compound that plays a role in the biosynthesis of porphyrins, which are essential components of heme and chlorophyll. It is derived from the amino acid glycine and is involved in the metabolic pathway known as porphyrin metabolism. This compound is also used in medical tests to diagnose and monitor certain liver and blood disorders.
Amino refers to amino acids, which are organic compounds that combine to form proteins. They are essential for various biological functions and serve as building blocks of life.
Aminoacyl refers to a compound that combines an amino acid with a cytidine diphosphate (CDP) or a similar molecule. It is involved in the process of protein synthesis, where amino acids are attached to transfer RNA (tRNA) molecules, forming aminoacyl-tRNA. This process, called aminoacylation, is essential for translating genetic information from mRNA into proteins.
Aminoacylation is the process of attaching an amino acid to its corresponding transfer RNA (tRNA) molecule, forming an aminoacyl-tRNA complex. This process is essential in protein synthesis, as it ensures that the correct amino acids are brought together to build proteins according to the genetic code. The enzyme responsible for this reaction is called aminoacyl-tRNA synthetase.
Aminoalkane refers to a compound that is derived from an alkane by replacing one or more hydrogen atoms with amino (-NH2) groups. It is a type of organic compound consisting of a hydrocarbon chain with one or more amino groups attached to it. These compounds can be considered as derivatives of alkanes with amino groups取代了部分或全部的氢原子,在化学中常用于合成各种生物分子和药物。
Aminobenzene is an organic compound consisting of a benzene ring with one amino group (-NH2) attached to it. It is a colorless liquid with a distinct odor and is used primarily as a precursor in the production of dyes, pharmaceuticals, and other chemical compounds. It is also known as aniline and has hazardous properties, being toxic and potentially carcinogenic.