Vildagliptin Impurity J-manufacture,factory,supplier from China

Sericin protein is a natural macromolecular protein wrapped on the surface of silk fibroin. It is mainly secreted by the silk glands of silkworms and is one of the main proteins that make up the silkworm cocoon.

As early as 1780, the Swedish chemist Sheele discovered lactic acid from waste milk; the production of lactic acid by fermentation originated from the natural fermentation of Boutron and Fremy in 1941; the industrial production of lactic acid by pure fermentation was started by Charles E. Avery in 1881. began; and large-scale industrial production of L-lactic acid was formed in the early 1990s.

Photoinitiators, also known as photosensitizers or photocuring agents, are a type of energy that can absorb certain wavelengths in the ultraviolet region (250-420nm) or visible region (400-800nm) to generate free radicals, cations, etc., thereby initiating monomer Polymerization crosslinks cured compounds.What is a photoinitiator?In the photocuring system, including UV glue, UV coating, UV ink, etc., after receiving or absorbing external energy, it undergoes chemical changes and decomposes into free radicals or cations, thereby initiating polymerization.All substances that can generate free ra

Acetic Acid: A Versatile Compound with Numerous ApplicationsAcetic acid, commonly known as ethanoic acid, is an organic compound with the chemical formula CH₃COOH. It’s a colorless liquid with a pungent smell and sour taste.

Niacinamide, also called nicotinamide, is an amide substance of niacin. White crystalline powder; odorless or nearly odorless, bitter in taste; slightly hygroscopic. Soluble in water or ethanol, soluble in glycerol.Because nicotinamide is a B vitamin derivative, as well as nicotinamide is additionally a component of coenzymes, it is an essential part of the body as a coenzyme of several dehydrogenases.

Global Role of Ethylene GlycolThe global supply chain is intricately linked with the production and distribution of ethylene glycol, also known as mono ethylene glycol (MEG) or simply EG, with the chemical formula C2H6O2 and CAS number 107-21-1 . This clear, viscous liquid is a critical component in various industries, from automotive to textiles, and is commonly recognized for its use in glycol antifreeze solutions .Ethylene glycol is predominantly utilized in the manufacturing of polyester and polyurethane plastics, which are essential in the textile industry.

1. 2024 Production and Sales OverviewBased on the latest available data, the specific global production and sales figures of caustic soda (CAS#1310 - 73 - 2) in 2024 have not been fully compiled yet. However, looking at the situation in China, which is a major player in the global caustic soda market, from January to November 2024, the production of caustic soda (in terms of 100% equivalent) reached 39.805 million tons, showing a year - on - year growth of 5.9%.

Industrialization of TrehaloseTrehalose is a stable non-reducing disaccharide consisting of two glucose molecules with an α, α, 1, 1-glycosidic bond. Trehalose was originally extracted from the ergot fungus of rye and was subsequently found to be widespread in natural flora, fauna and microorganisms, especially in fungi, algae, mosses and invertebrates. Trehalose is white crystal, a molecule of trehalose contains two molecules of crystal water, soluble in water, glacial acetic acid and hot ethanol, insoluble in ether, acetone.

New Use of Poly-L-lactic Acid as Shape Memory MaterialBackground techniqueBiopolymer is an important medical polymer material with good biodischarge and bioabsorbability advantages. It has been widely used in outdoor fixation, tissue engineering stents, operation lines, drug control, etc. Polylactic acid is usually synthesized by the ring polymerization method of lactide. According to the difference of optical ring-opening polymerization, the lactide properties are divided into D-lactide properties, L-lactide properties and DL-lactide properties.

Introduction2-ethyl-3-hydroxy-6-methylpyridine, also known as 2-ethyl-6-methyl-3-pyridinol, is a chemical compound with the molecular formula C8H11NO. Its CAS number is 2364-75-2. This compound is widely used in the chemical industry as a building block for the synthesis of various chemicals. In this article, we will discuss the properties, uses, and synthesis of 2-ethyl-3-hydroxy-6-methylpyridine.Properties2-ethyl-3-hydroxy-6-methylpyridine is a white to off-white crystalline powder with a melting point of 88-92°C. It is soluble in water, ethanol, and other organic solvents.