Phenanthrene is a polycyclic aromatic hydrocarbon (PAH) composed of three fused benzene rings, resulting in a bicyclic structure. It is a colorless crystalline solid at room temperature naturally found in coal tar, crude oil, and various fossil fuels. Phenanthrene is a prominent PAH family member and is a fundamental building block in organic chemistry and … Read more
Derivatives of anthracene are numerous and diverse, with modifications made to its structure, yielding compounds with varied properties and applications. Some common derivatives of anthracene include: Anthraquinone Anthraquinone is a key aromatic organic compound derived from anthracene, a tricyclic hydrocarbon composed of three fused benzene rings. With the molecular formula C14H8O2, anthraquinone is characterized by … Read more
Anthracene, a polycyclic aromatic hydrocarbon, finds various applications across different industries due to its unique chemical properties. Some of the common uses of anthracene include: Overall, anthracene’s versatility and unique chemical properties make it a valuable compound in various industrial, scientific, and educational applications, ranging from dye manufacturing to pharmaceutical research. However, it’s essential to … Read more
Anthracene, a chemical compound, participates in addition and electrophilic substitution reactions, with a preference for occurring at the C-9 and C-10 positions. This preference can be rationalized by examining the intermediate carbonium ions generated from attacks at C-1, C-2, and C-9 (where other positions are symmetrical equivalents of 1, 2, or 9). In the equations … Read more
Anthracene is a polycyclic aromatic hydrocarbon consisting of three fused benzene rings. It is a solid at room temperature, typically appearing as colorless to pale yellow crystals. Anthracene is insoluble in water but soluble in organic solvents such as benzene and toluene. Anthracene exhibits several physical properties: These properties contribute to its diverse applications in … Read more
Anthracene can be prepared through several methods, including: 1. By Friedal Craft reaction: Anthracene can be synthesised via the Friedel-Crafts alkylation reaction, where benzyl chloride reacts with itself in a Lewis acid catalyst like aluminium chloride. This forms di(phenylethyl)benzene, which can then be cyclized to yield anthracene. 2. By Haworth Synthesis Step I: Benzene reacts … Read more
Anthracene, a compound derived from coal tar, is known for its presence in coal tar, ranging from 0.3 to 3.5 %. Its name originates from the Greek word “anthrac,” meaning coal. When tar is distilled, anthracene separates into high-boiling fractions known as anthracene oil. Structurally, anthracene comprises three benzene rings fused in ortho positions, resulting … Read more
Join us at Macleods Pharmaceuticals Ltd. for our Walk-in Drive catering to professionals in the pharmaceutical field. We’re seeking qualified individuals for various roles in Production, QA, and QC across our esteemed locations. Macleods Pharmaceuticals Ltd. is one of the fastest-growing pharmaceutical companies, boasting a strong presence in multiple therapeutic segments. Headquartered in Mumbai, our … Read more
Liquid dosage forms are pharmaceutical preparations in a liquid state that are administered orally, topically, or by injection. These formulations offer several advantages and disadvantages, and their selection depends on factors such as patient characteristics, the nature of the drug, and the desired therapeutic effect. Here is a detailed note on the advantages and disadvantages … Read more
Geometric dilution is a technique used in pharmaceutical compounding to ensure the uniform distribution of a potent or concentrated substance throughout a mixture. This method is particularly important when working with small quantities of potent drugs or active ingredients to achieve accurate and consistent dosages in the final product. Key Principles of Geometric dilution 1. … Read more
