Dimethyl Disulfide Manufacturers

Acenaphthene CAS No:83-32-9

H&Z® Ginkgo Biloba Extract is an ancient and primitive relic species that has grown on the earth for about 200 million years and is known as "living fossil". China is the hometown of ginkgo. At present, China's ginkgo resources account for 70% of the world.Ginkgo biloba is known as longevity fruit. It is used in Chinese folk medicine as a Chinese herbal medicine.

Zinc oxide (ZnO), commonly known as zinc white, is a kind of oxide of zinc, which is insoluble in water but soluble in acid and alkali. Zinc oxide(indirect method) is the use of zinc ingots as raw materials, which is conversed to zinc vapor in graphite crucible at 1000 ° C, then zinc vapor is oxidized by bubbling air and through the cooling tube, zinc oxide particles are collected. The product purity varies with the raw material of zinc ingots. Except zinc ingots, zinc slag is another kind of raw material. Good technology and pure zinc ingots can make the product purity reach more than 99.8%.

Freely soluble in formic acid, very slightlysoluble in water,practically insoluble in ethanol and in . Dissolve in dilute hydrochloric acid and in dilute nitric acid. Aside from being a proteinogenic amino acid, tyrosine has a special role by virtue of the phenol functionality. It occurs in proteins that are part of signal transduction processes. L-tyrosine functions as a receiver of phosphate groups that are transferred by way of protein kinases (so-called receptor tyrosine kinases). Phosphorylation of the hydroxyl group changes the activity of the target protein.China H&Z® L-tyrosine is a precursor to neurotransmitters and increasesplasma neurotransmitter levels (particularly and )but has little if any effect on mood.The effect on mood is more noticeable in humans subjected to stressful conditions.

China H&Z® Ursolic Acid, a carboxylic acid present in a wide variety of plants in the form of a free acid or an aglycone of triterpene saponines. It is a pentacyclic triterpenoid compound which naturally occurs in a large number of vegetarian food, medicinal herbs and plants.

Butyl acrylate n-butyl acrylate CAS No.141-32-2