Manufacturer Supply High Quality CAS 60-18-4 L-Tyrosine

• CAS No.: 60-18-4
• Formula: C9h11no3
• EINECS: 200-460-4
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-79XQ
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	L-Tyrosine
CAS	60-18-4
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

L-Tyrosine
Product Name L-Tyrosine

CAS 60-18-4

MF C9H11NO3

MW 181.19

EINECS 200-460-4

MOL File 60-18-4.mol

Chemical Properties

Melting point >300 °C (dec.) (lit.)
alpha  -11.65 º (c=5,DIL HCL/H2O 50/50)
Boiling point 314.29°C (rough estimate)
Density  1.34
FEMA  3736 | L-TYROSINE
refractive index  -12 ° (C=5, 1mol/L HCl)
Flash point 176 °C
storage temp.  Store below +30°C.
solubility  1 M HCl: 25 mg/mL
pka 2.2(at 25ºC)
form  powder
color  White to Pale-brown
PH 6.5 (0.1g/l, H2O)
optical activity [α]20/D 11.5±1.0°, c = 4% in 1 M HCl
Water Solubility  0.45 g/L (25 ºC)
Merck  14,9839
JECFA Number 1434
BRN  392441

Usage And Synthesis
Tyrosine

Tyrosine is an aromatic amino acid , can be found in a variety of proteins, and is particularly rich in casein milk protein, molecules containing phenoll groups, Its structural formulais is as follows:

Tyrosine is found by Li Biqi 1846 from casein, white crystalline powder, needle-like crystals or platelets from the water. The relative density of 1.456 (20 ºC), the isoelectric point of 5.66, UV absorption capacity, at a wavelength of 274nm of maximum light absorption, capable of reducing phosphomolybdic acid-phosphotungstic acid reagent (Folin reagent). Melting point: L-body decomposition 290~295 ºC (slow heating), decomposition (rapid heating) 314~318 ºC, the racemate 290 to 295 decomposition (slow heating), decomposition (rapid heating) 340 ºC. Soluble in water, alcohol, acid and alkali, insoluble in ether. Dextrose solution reacts with tyrosinase to be red. laevo isomer friction can emit light , when at 170 ºC heated with the barium hydroxidde solution ,it can become a racemate, ortho of the phenoollic hydroxyl group of tyrosine molecule is prone to chemical reaction, when coupled with a diazonium acid ,it is orange-red substance, when coupled with boiling dilute acetic acid and sodium nitritte ,it is purple or red, yellow when coupled with nitricc acid, when in sulfuric acid reacting with titanium dioxide it is dark orange. L-tyrosine is a natural body, by proteolysis, refining.

GuangZhou TongYi biochemistry technology Co., Ltd is a company specializing in active pharmaceutical ingredient
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