L-Tyrosine

• CAS No.: 60-18-4
• Packaging Material: Metal
• Storage Method: Normal
• Shelf Life: 6 Months-12 Months
• Type: PG
• Resource: Natural
• Model NO.: E1422
• Transport Package: Paper
• Specification: large
• Trademark: china
• Origin: China
• HS Code: 29225090
• Production Capacity: 5000kg/Year

Product Description

Tyrosine was discovered from casein in 1846 as a white crystalline powder, and crystallized as a needle or sheet from water. Relative density of 1.456 (20ºC), isoelectric point of 5.66, has the ability to absorb ultraviolet light, has the maximum light absorption at the wavelength of 274nm, can reduce phosphorymolybdate-phosphotungstic acid reagent (formaldehyde reagent). Melting point: 290~295ºC (slow heating), 314~318ºC (rapid heating), 290-295 (slow heating) and 340ºC (rapid heating). Dissoluble in water, ethanol, acid and alkali, insoluble in ether. The aqueous solution of dexx appears red with tyrosinase. Left body can friction light, at 170ºC and barium hydroxide aqueous solution heating into elimination, phenol hydroxyl group in tyrosine molecules prone to chemical reaction, and diazophene sulfonic acid coupling orange red material, and boiling dilute acetic acid and sodium nitrite is purple or red, with warm nitric acid Chemicalbook yellow, in sulfuric acid and titanium dioxide is dark orange yellow. Natural tyrosine is the left-handed body, which can be obtained by proteolysis, refined. Tyrosine is a non-essential amino acid, which is the raw material of a variety of products of the body. Tyrosine in the body can be transformed into a variety of physiological substances through different metabolic ways, such as dopamine, thyroxine, melanin and opium poppy (opium) papaverine. These substances are closely related to the control of nerve conduction and metabolic regulation. Studying tyrosine metabolism helps to understand the pathological processes of certain diseases. For example, urinary black acid is related to tyrosine metabolism disorder, the lack of urinary black acid oxidase in the metabolite of tyrosine can not continue to decompose, discharged from the urine by air oxidation into black substances, the diapers of children with this disease will gradually become black in the air, and this urine will become black for a long time. Albinism is also related to the metabolism of tyrosine, patients lack tyrosinase and the tyrosine metabolites 3,4-dihydroxyphenylalanine can not form melanin so that the hair skin is white.