56-75-7, description of the properties of chloramphenicol, L-mycin, and levomycin

L-Mycin, also known as Levomycin, is a broad-spectrum antibacterial antibiotic with the chemical name D(-)-su-1-p-nitrophenyl-2-dichloroacetamido-1,3-propanediol, and D-threo-(-)-N-[α-(hydroxymethyl)-β-hydroxy-p-nitrophenethyl]-2,2-dichloroacetamide. Its CAS number is 56-75-7. The molecular formula is C₁₁H₁₂Cl₂N₂O₅, with a molecular weight of 323.13 g/mol. It is available in USP grade, with a purity range of 97 to 103%. The specific optical rotation is between +17° and +20°, and the melting point ranges from 149°C to 153°C. When dissolved in water at a concentration of 2.5%, the pH at 25°C is between 4.5 and 7.5. This compound appears as white or yellowish needle-shaped crystals or a crystalline powder. It is slightly soluble in water (2.5 mg/mL at 25°C), more soluble in propylene glycol (150.8 mg/mL), and readily dissolves in methanol, ethanol, butanol, and ethyl acetate. However, it is insoluble in ether, benzene, petroleum ether, and vegetable oil. It has a very bitter taste and is primarily used in biochemical research. L-Mycin works by inhibiting protein synthesis at the peptidyl transferase site on the 50S ribosomal subunit, thereby preventing bacterial growth. For storage, it should be kept at room temperature (RT) in a dry, cool place, away from moisture and direct sunlight. This antibiotic is widely studied for its mechanism of action and potential applications in pharmaceutical and research settings.

Military Furniture

Military furniture offers several advantages that make it essential for military personnel. Firstly, military furniture is designed to be durable and long-lasting, able to withstand the harsh conditions of military environments. It is built with high-quality materials, such as steel or aluminum, ensuring its sturdiness and resistance to wear and tear. This durability is vital for military operations, as it allows troops to focus on their tasks without worrying about furniture breaking or malfunctioning.

Secondly, military furniture is designed with functionality in mind. It is often modular and easily customizable, allowing for efficient use of limited space. Military personnel can quickly rearrange and adapt their furniture to fit their specific needs, whether it be for sleeping, eating, or storage. This flexibility is crucial for military operations, where troops may need to set up temporary camps or work in confined spaces.

Furthermore, military furniture is designed to be lightweight and portable. It can be easily folded, stacked, or disassembled for transportation, allowing for easy deployment and relocation. This mobility is essential for military personnel who are frequently on the move, as it enables them to quickly set up their living and working spaces wherever they are deployed.

In summary, military furniture offers the advantage of durability, functionality, and portability. These qualities make it an ideal choice for military personnel, providing them with reliable and adaptable furniture that can withstand the demands of military operations.

Military Furniture,Folding Clothes Hanger,Outdoor Folding Mat,Camping Sleeping Mats

Henan Toda Technology Co., Ltd. , https://www.todafurniture.com