T3754

Sigma-Aldrich

L-Tyrosine

reagent grade, ≥98% (HPLC)

Synonym(s):
(S)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-L-alanine
Linear Formula:
4-(HO)C6H4CH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
181.19
Beilstein/REAXYS Number:
392441
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26
Pricing and availability is not currently available.

Quality Level

grade

reagent grade

assay

≥98% (HPLC)

form

powder

application(s)

detection: suitable

color

white to off-white

mp

>300 °C (dec.) (lit.)

solubility

1 M HCl: soluble 50 mg/mL

SMILES string

N[C@@H](Cc1ccc(O)cc1)C(O)=O

InChI

1S/C9H11NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-4,8,11H,5,10H2,(H,12,13)/t8-/m0/s1

InChI key

OUYCCCASQSFEME-QMMMGPOBSA-N

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Related Categories

Application

L-Tyrosine has been used to prepare tyrosine solution for tyrosinase assay. It has also been used to assay pepsin activity.

Packaging

50, 100, 500 g in poly bottle
1 kg in poly bottle

Biochem/physiol Actions

L-Tyrosine is a non-essential amino acid with a polar side chain. It is utilized by cells to synthesize proteins that have a role in signal transduction. L-Tyrosine is a proteogenic amino acid that acts as a receiver of phosphate groups that are transferred by kinases.

Other Notes

Amino acid precursor of dopamine and other catecholamines

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Certificate of Analysis
Certificate of Origin
Effect of insoluble fiber supplementation applied at different ages on digestive organ weight and digestive enzymes of layer-strain poultry
J. S. Yokhana
Poultry Science, 95(3), 550-559 (2016)
Karen Timberlake
Chemistry, An Introduction to General, Organic, and Biological Chemistry (2016)
Study of Physiochemical Parameters for Optimizing Tyrosinase Activity in Rhodococcus ruber C4 and Pseudomonas geniculata C7/C10
Sapna S. Ingle
Journal of Pharmacy Research, 9(6) (2015)
John W Hill
Chemistry for Changing Times (2016)
Jang Hoon Kim et al.
Marine drugs, 17(6) (2019-06-19)
Tyrosinase inhibitors improve skin whitening by inhibiting the formation of melanin precursors in the skin. The inhibitory activity of seven phlorotannins (1-7), triphlorethol A (1), eckol (2), 2-phloroeckol (3), phlorofucofuroeckol A (4), 2-O-(2,4,6-trihydroxyphenyl)-6,6'-bieckol (5), 6,8'-bieckol (6), and 8,8'-bieckol (7), from...
Articles
Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).
Read More
Protocols
Proteases break peptide bonds. In the lab, it is often necessary to measure and/or compare the activity of proteases. Sigma's non-specific protease activity assay may be used as a standardized procedure to determine the activity of proteases, which is what we do during our quality control procedures.
Read More
Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).
Read More
To standardize a procedure for the enzymatic assay of Protease using Casein as a substrate.
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