Skip to content
caloong factory

Caloong News

New Preparation Method and Application of Prednisolone Sodium Phosphate

The Chemical formula of prednisolone sodium phosphate is C21H27Na2O8P, the molecular weight is 484.39, and the CAS number is 125-02-0. It is also called prednisolone 21-(disodium phosphate). It is easily soluble in water, slightly soluble in ethanol. Its appearance is white powder as the raw material. After being made into medicine, according to prednisolone sodium phosphate medicinal value, there are

Read More »

New Synthesis Method of 2-Phenylimidazoline

According to the different reaction materials, the synthesis method of 2-phenylimidazoline can be divided into the following three types: 1)Ethylenediamine reacts with phenylacetonitrile Vogelbacher et al. mixed 10 g of benzonitrile, 6.0 g of ethylenediamine, 0.075 g of sodium sulfide and 0.15 g of concentrated sulfuric acid at 130 to 165 C for 20 h, light yellow needle crystals of

Read More »

Overview of the Synthesis Method of 2-Phenylimidazole

2-phenylimidazole compounds are of great research value in the fields of polymer materials, organic synthesis, proton exchange materials and organic luminescent materials, which promote the continuous exploration and research of their synthesis methods.2-PZ has also developed many preparation methods and systems in the past research work. According to recent literature reports, the synthesis method of 2-PZ can be summarized into

Read More »

New Related Reactions of 2-Phenylimidazole

Substitution reaction on 1-nitrogen atom (N-1) on imidazole ring The unshared electron pairs contained in N-1 on the imidazole ring can participate in ring conjugation, reducing the electron density of nitrogen atoms. The hydrogen there is easily replaced. Sharghi et al. reported a synthesis method of 1, 2-diphenyl-1H-imidazole, that is, DMSO at 110 °C, As a reaction solvent, the yield of the

Read More »

Pure Terephthalic Acid (PTA) of New Manufacturing Process

Pure terephthalic acid (PTA) is white crystal or powder, low toxicity, flammable. If it is mixed with air, it will burn or even explode when it meets fire within a certain limit. Its spontaneous combustion point is 680℃, the ignition point is 384~421℃, the heating heat is 98.4kJ/mol, the combustion heat is 3225.9kJ/mol, and the density is 1.55g/cm3. Soluble in alkaline solution, slightly

Read More »

Applications and New Preparation Methods of Butanol(n-Butanol )

The chemical formula of butanol is C4H10O, the molecular weight is 74.12, and it is also called Butylalcohol. Butanol a colorless transparent liquid with the special odor – wine odor, which is easily soluble in ethanol, ether, hydrogen sulfide aqueous solution, slightly soluble in water. It is mainly used to make n-butyl ester plasticizers of phthalic acid, aliphatic dibasic acid

Read More »

Ethylene Glycol Product New Introduction

Ethylene glycol (ethylene glycol), also known 1, 2-ethylene glycol, referred to as EG. With the chemical formula (CH2OH)2,CAS login number 107-21-1, it is the simplest diol. Ethylene glycol is colorless, odorless, sweet liquid, low toxicity to animals, ethylene glycol can be miscible with water and acetone, but the solubility is small in ethers. Ethylene glycol product use Mainly used to make

Read More »

What is the New Methods for Preparation of 1,4-Butanediol (BDO) ?

1,4-Butanediol (BDO) is an important organic and fine chemical raw material that finds wide applications in fields such as pharmaceuticals, chemicals, textiles, papermaking, automotive, and daily chemicals. Its CAS number is 110-63-4 and molecular formula is C4H10O2.BDO can be used to produce tetrahydrofuran (THF), polybutylene terephthalate (PBT), gamma-butyrolactone (GBL), polyurethane resin (PU Resin), coatings, plasticizers, as well as solvents and

Read More »

What is the New Application of DMAC (Dimethylacetamide) ?

Currently, the annual demand for dimethylacetamide (DMAC) in China is over 13 kt, particularly with a significant growth in demand for pharmaceutical intermediates and pesticides in recent years. The electronic industry has also shown a noticeable increase in demand for high-quality DMAC. The market usage of DMAC as a solvent, especially in applications such as polyacrylonitrile spinning, imide resins, and insulation

Read More »

New Propertiesd and Related Reactions of 2-Phenylimidazole

Properties of 2-phenylimidazole 2-Phenylimidazole (2-PZ), also known as 2-phenylimidazole. 2-phenylimidazole molecular formula: C9H8N2, molecular weight: 144.2, melting point: 142.0~148.0 °C, boiling point (1atm) : 335~337 °C, the appearance of cream colored lens powder, insoluble in water, easily soluble in methanol, ethanol and acetone. phenylimidazole is a π-electron rich aromatic heterocyclic compound, including benzene ring and imidazole ring, with aromatic properties. The imidazole ring

Read More »