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What Is The Use of 1,2-methylenedioxybenzene? [ 2023-03-03 ]

1,2-methylenedioxybenzene, also known as piperonyl, is a versatile chemical compound with a wide range of applications in various industries. In this article, we will explore the different uses of 1,2-methylenedioxybenzene.

Application of BPDA Dianhydride [ 2023-02-18 ]

BPDA Dianhydride, also known as Biphenyl tetracarboxylic dianhydride, is a versatile organic compound with a wide range of applications in various industries. It is a white, crystalline solid that is soluble in organic solvents and commonly used as a monomer in the production of high-performance polymers. In this article, we will discuss the various applications of BPDA Dianhydride and its importance in the industries where it is used.

The Chemistry of Fragrance in Fragrance [ 2022-09-22 ]

Fragrances can be broadly classified into two categories: synthetic fragrances and natural fragrances.

China's Flavor and Fragrance Evolutionary Development History [ 2022-09-07 ]

China is the world's largest producer of natural flavors and fragrances. There are about 7,000 varieties of spices in the world, and more than 1,000 kinds of spices are produced in China. The history of spice application is also developed along with the progress of human civilization.

Are Flavors Harmful to Humans? [ 2022-08-31 ]

Flavors are synthetic concentrates with a certain natural aroma, the so-called natural flavors are only the main flavoring agent is naturally extracted, after which other auxiliary agents need to be added artificially.

What is Pharmaceutical Intermediate? [ 2022-08-26 ]

Intermediates are a very important type of fine chemical products, in essence, they are a kind of "semi-finished products", mainly used in the synthesis of pharmaceuticals, pesticides, coatings, dyes and fragrances.

Ranitidine Hydrochloride [ 2022-07-25 ]

Ranitidine hydrochloride is an organic compound with the molecular formula C13H23ClN4O3S, a whitish or yellowish crystalline powder with an odour, slightly bitter and astringent taste. It is extremely hygroscopic. It is readily soluble in methanol or water or acetic acid, slightly soluble in ethanol and slightly insoluble in chloroform or acetone.

Production of BPDA by dehalogenated coupling of phthalic anhydride [ 2022-07-11 ]

In this paper, the dehalogenated coupling method of 4-bromo-phthalic anhydride was used, i.e., the reaction of phthalic anhydride with bromosol to form the sodium salt of 4-bromo-phthalic acid, followed by a two-step reaction of dehalogenated coupling and dehydration to produce BPDA.

Three Preparation Methods to Make BPDA [ 2022-06-25 ]

BPDA (3,3',4,4'-biphenyltetracarboxylic dianhydride) is the raw material of polyimide resin, one of the super engineering plastics, and is used as an important component material for many products in the information and electronics field such as cell phones and copiers.

Piperonal, Heliotropine, and Its Properties [ 2022-06-13 ]

Heliotropine, also known as jasmine aldehyde, chemically known as 3,4-dioxymethylene benzaldehyde (3,4-methylenedioxy benzaldehyde), is widely used in synthetic fragrances, pharmaceuticals, food, daily chemicals, electroplating, etc.

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Hebei Hailihengyuan New Material Co., LTD. was established in December 2003, covering an area of 26700m², with a registered capital of 40.2 million, 281 employees and a sales volume of 198 million in 2019.
The company specializes in the development, production and sales of chemical APIs, spices, polyimide monomers.

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Jinsha Road, Shijiazhuang Economic and Technological Development Zone

+86-0311-83098090 83098095

yq@chinahlchem.com

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