1.08371
L-Tyrosine
for biochemistry
Synonym(s):
L-Tyrosine, 4-Hydroxyphenylalanine, Tyr
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About This Item
Empirical Formula (Hill Notation):
C9H11NO3
CAS Number:
Molecular Weight:
181.19
UNSPSC Code:
12352209
EC Index Number:
200-460-4
NACRES:
NA.21
MDL number:
Quality Level
form
crystalline powder
potency
>5110 mg/kg LD50, oral (Rat)
pH
6.5 (0.1 g/L in H2O)
mp
297-298 °C (decomposition)
solubility
0.38 g/L
density
1.46 g/cm3 at 20 °C
bulk density
300 kg/m3
storage temp.
2-30°C
SMILES string
[N+H3]C(Cc1ccc(cc1)O)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)
InChI key
OUYCCCASQSFEME-UHFFFAOYSA-N
Analysis Note
- Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
- Identity (IR-spectrum): passes test
- Appearance: white, crystalline powder or colorless crystals
- Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): -11.3 to -12.1
- Chloride (Cl): ≤ 0.02 %
- Sulfate (SO₄): ≤ 0.01 %
- Heavy metals (as Pb): ≤ 0.001 %
- As (Arsenic): ≤ 0.0005 %
- Ca (Calcium): ≤ 0.001 %
- Co (Cobalt): ≤ 0.0005 %
- Fe (Iron): ≤ 0.0005 %
- K (Potassium): ≤ 0.0005 %
- Mg (Magnesium): ≤ 0.0005 %
- Na (Sodium): ≤ 0.01 %
- NH₄ (Ammonium): ≤ 0.01 %
- Zn (Zinc): ≤ 0.0005 %
- L-Phenylalanine: ≤ 0.5 %
- other foreign amino acids: ≤ 0.2 %
- Other ninhydrine positive substances: ≤ 0.1 %
- Loss on drying (105 °C; 3 h): ≤ 0.2 %
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
Certificates of Analysis (COA)
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