L-Tyrosine

product name

L-Tyrosine, BioUltra, ≥99.0% (NT)

product line

BioUltra

Quality Level

200

Assay

≥99.0% (NT)

form

powder or crystals

optical activity

[α]20/D −11.5±1.0°, c = 4% in 1 M HCl

technique(s)

ligand binding assay: suitable

impurities

insoluble matter, passes filter test
≤0.5% foreign amino acids

ign. residue

≤0.1%

loss

≤0.2% loss on drying, 20 °C (HV)

color

white

mp

>300 °C (dec.) (lit.)

solubility

1 M HCl: 25 mg/mL, clear, colorless (hot)

anion traces

chloride (Cl^-): ≤400 mg/kg
sulfate (SO₄^2-): ≤300 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH₄⁺: ≤200 mg/kg
Na: ≤200 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 310 nm in 1 M HCl at 0.5 M

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