9H-fluorene for Medicine Manufacturers

China H&Z® L-Ascorbic Acid is a naturally occurring organic compound with antioxidant properties. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions.

H&Z® supplier provide Pyridoxine Hydrochloride ,it refers to a group of chemically very similar compounds which can be interconverted in biological systems. Vitamin B6 is part of the vitamin B complex group, and its active form, Pyridoxal 5'-phosphate (PLP) serves as a cofactor in many enzyme reactions in amino acid, glucose, and lipid metabolism.Vitamin B6 is a water-soluble vitamin and is part of the vitamin B complex group. Several forms of the vitamin are known,but pyridoxal phosphate (PLP) is the active form and is a cofactor in many reactions of amino acid metabolism, including transamination, deamination, and decarboxylation. PLP also is necessary for the enzymatic reaction governing the release of glucose from glycogen.

China H&Z® L-Pyroglutamic Acid (also known as PCA, 5-oxoproline, pidolic acid, or pyroglutamate for its basic form) is a ubiquitous but little studied natural amino acid derivative in which the free amino group of glutamic acid or glutamine cyclizes to form a lactam.It is a metabolite in the glutathione cycle that is converted to glutamate by 5-oxoprolinase. Pyroglutamate is found in many proteins including bacteriorhodopsin. N-terminal glutamic acid and glutamine residues can spontaneously cyclize to become pyroglutamate, or enzymatically converted by glutaminyl cyclases. This is one of several forms of blocked N-termini which present a problem for N-terminal sequencing using Edman chemistry, which requires a free primary amino group not present in pyroglutamic acid. The enzyme pyroglutamate aminopeptidase can restore a free N-terminus by cleaving off the pyroglutamate residue.

Piperine is main active component of pepper.China H&Z® Black Pepper Extract is a type of alkaloid. It is found widely in nature, especially in pepper plants.We have 3% 10% 50% 95% 98% piperine, which can meet different requirements.

n-Heptadecane CAS:629-78-7 Heptadecane99% Heptadecane99.5% heptadecane n-Heptadecane CAS:629-78-7

China H&Z® L-cystine is a nutritional supplement, can be used in medicine, cosmetics, food additives and so on.Used for breast-feeding milk powder.Non - essential amino acids.It is essential to the formation of skin and hair and can facilitate surgery and trauma treatment.Stimulates the hematopoietic function, promotes the white blood cell generation.It can promote the oxidation and reduction of cells in the body. It can also be used as an additive in cosmetics to promote wound healing, prevent skin allergies and treat eczema.