L-Tyrosine, BioUltra, >=99.0% (NT)

Name: L-Tyrosine, BioUltra, >=99.0% (NT)
Brand: SIGMA-ALDRICH
SKU: 93829-25G
Price: 93.83 USD

Code: 93829-25G D2-231

Not available outside of the UK & Ireland.

Application

L-Tyrosine was used in tyrosine hydroxylase (TH) enzyme activity assay. It was also used as a substrate for tyrosinase enzyme in the growth media of Vibrio ch...

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Not available outside of the UK & Ireland.
Application
L-Tyrosine was used in tyrosine hydroxylase (TH) enzyme activity assay. It was also used as a substrate for tyrosinase enzyme in the growth media of Vibrio cholerae strains to stimulate melanin formation. It may be used as a precursor in the synthesis of (-)-MY 336a. MY 336a, a β-adrenergic receptor antagonist, was initially isolated from the culture broth of Streptomyces gabonae KY2234 (ATCC 15282). It may be used in the synthesis of 3-bromo-L-tyrosine and 3,5-dibromo-L-tyrosine.
Other Notes
Growth requirements of various microorganisms
Amino acid precursor of dopamine and other catecholamines

absorption cut-off at 310 nm in 1 M HCl at 0.5 M
anion traces sulfate (SO₄^2-): ≤300 mg/kg, chloride (Cl^-): ≤400 mg/kg
assay ≥99.0% (NT)
cation traces Bi: ≤5 mg/kg, Mo: ≤5 mg/kg, Al: ≤5 mg/kg, K: ≤50 mg/kg, As: ≤0.1 mg/kg, Li: ≤5 mg/kg, Na: ≤200 mg/kg, Cr: ≤5 mg/kg, Mn: ≤5 mg/kg, Sr: ≤5 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Ba: ≤5 mg/kg, Fe: ≤5 mg/kg, Zn: ≤5 mg/kg, Ni: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, NH₄⁺: ≤200 mg/kg
color white
form powder or crystals
ign. residue ≤0.1%
impurities ≤0.5% foreign amino acids, insoluble matter, passes filter test
InChI key OUYCCCASQSFEME-QMMMGPOBSA-N
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
loss ≤0.2% loss on drying, 20 °C (HV)
mp >300 °C (dec.) (lit.)
optical activity [α]20/D −11.5±1.0°, c = 4% in 1 M HCl
product line BioUltra
Quality Level 200
SMILES string N[C@@H](Cc1ccc(O)cc1)C(O)=O
solubility 1 M HCl: 25 mg/mL, clear, colorless (hot)
technique(s) ligand binding assay: suitable

Safety Data Sheet
Safety Data Sheet for 93829-25G
Certificate of Analysis
Sigma Certificate of Analysis

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Cas Number 60-18-4

This product has met the following criteria to qualify for the following awards:

L-Tyrosine, BioUltra, >=99.0% (NT)

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absorption	cut-off at 310 nm in 1 M HCl at 0.5 M
anion traces	sulfate (SO₄^2-): ≤300 mg/kg, chloride (Cl^-): ≤400 mg/kg
assay	≥99.0% (NT)
cation traces	Bi: ≤5 mg/kg, Mo: ≤5 mg/kg, Al: ≤5 mg/kg, K: ≤50 mg/kg, As: ≤0.1 mg/kg, Li: ≤5 mg/kg, Na: ≤200 mg/kg, Cr: ≤5 mg/kg, Mn: ≤5 mg/kg, Sr: ≤5 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Ba: ≤5 mg/kg, Fe: ≤5 mg/kg, Zn: ≤5 mg/kg, Ni: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, NH₄⁺: ≤200 mg/kg
color	white
form	powder or crystals
ign. residue	≤0.1%
impurities	≤0.5% foreign amino acids, insoluble matter, passes filter test
InChI key	OUYCCCASQSFEME-QMMMGPOBSA-N
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
loss	≤0.2% loss on drying, 20 °C (HV)
mp	>300 °C (dec.) (lit.)
optical activity	[α]20/D −11.5±1.0°, c = 4% in 1 M HCl
product line	BioUltra
Quality Level	200
SMILES string	N[C@@H](Cc1ccc(O)cc1)C(O)=O
solubility	1 M HCl: 25 mg/mL, clear, colorless (hot)
technique(s)	ligand binding assay: suitable