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L-Tyrosine powder

Categories Food additives
Place of Origin: China
Brand Name: Guangzhou
Model Number: 60-18-4
Certification: USP
Price: 15usd
Packaging Details: 25kg drum
Delivery Time: 2DAYS
Payment Terms: L/C, T/T, Western Union
Supply Ability: 50 ton/month
MOQ: 1kg
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L-Tyrosine powder

L-Tyrosine Physicochemical property:

White crystal or crystalline powder, odorless, tasteless. Very slightly soluble in water, insoluble in absolute ethyl alcohol, methyl alcohol or acetone, soluble in diluted hydrochloric acid or dilute nitric acid.

Character & Uses:

L-Tyrosine is the catalytic substrate of tyrosinase phenol enzyme function. It is principal raw material of optional melanin and pheomelanin. It is the raw material of manufacturing diiodotyrosine and L-dopa.


L-Tyrosine Basic information

Product Name:

L-Tyrosine

Synonyms:

3-(4-HYDROXYPHENYL)-L-ALANINE;2-Amino-3-(4-hydroxyphenyl)-propanoic acid;2-AMINO-3-(P-HYDROXYPHENYL)PROPIONIC ACID;4-HYDROXYPHENYLALANINE;FEMA 3736;H-L-TYR-OH;H-TYR-OH;L-3-[4-HYDROXYPHENYL]ALANINE

CAS:

60-18-4

MF:

C9H11NO3

MW:

181.19

EINECS:

200-460-4

Product Categories:

Food and Feed Additive;Tyrosine [Tyr, Y];Amino Acids;Amino Acids and Derivatives;alpha-Amino Acids;Biochemistry;Nutritional Supplements;L-Amino Acids;Amino Acids;NORCURON;amino


L-Tyrosine Chemical Properties

mp

>300 °C (dec.)(lit.)

alpha

-11.65 º (c=5,DIL HCL/H2O 50/50)

density

1.34

refractive index

-12 ° (C=5, 1mol/L HCl)

FEMA

3736

Fp

176 °C

storage temp.

Store at RT.

solubility

1 M HCl: 25 mg/mL

Water Solubility

0.45 g/L (25 ºC)

Stability:

Stable. Incompatible with strong oxidizing agents, strong reducing agents.


Safety Information

Hazard Codes

Xi,

Risk Statements

36/37/38-40

Safety Statements

26-36-37/39-22

WGK Germany

3

RTECS

YP2275600

HS Code

29225000


Specifications:(USP32)

Standard: USP32

Item

Specifications

Results

Appearance

White crystalline powder

White crystalline powder

Assay (on dried basis)

98.5%~101.5%

99.7%

Specific Rotation

-9.8~-11.2

-10.52

Heavy metals (as Pb)

≤0.0015

<0.0015

Iron

≤0.003

<0.003

Arsenic

≤1ppm

<1ppm

Sulfate (SO4-2) ,

≤0.04

<0.04

Chloride(as Cl)

≤0.04

<0.04

Loss on drying (100~105℃)

≤0.3

0.15

Residue on ignition (as sulfate ash)

≤0.4

0.03

Lead

≤3ppm

<3ppm

Hg

≤0.1ppm

<0.1ppm

Cd

≤1ppm

<1ppm

Other Amino Acids

Conforms

Conforms

Conclusion:This product complies with USP32

Packaging and Storage:

In 25kgs fiber drum double polyethylene bags inside or in 25kgs kraft paper bags preserve in well-closed containers, at controlled room temperature.

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