DL-Tyrosine
Synonym(s):(±)-2-Amino-3-(4-hydroxyphenyl)propionic acid;3-(4-Hydroxyphenyl)-DL -alanine
- CAS NO.：556-03-6
- Empirical Formula: C9H11NO3
- Molecular Weight: 181.19
- MDL number: MFCD00063074
- EINECS: 209-113-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-04 20:04:50
What is DL-Tyrosine?
Chemical properties
white powder
The Uses of DL-Tyrosine
The tyrosine of this diet was labeled by adding to it an amount of synthetic, isotopic dl-tyrosine cor- responding to twice that already present in the food. Incorporation of total C14 into muscle protein was reduced in 186-day infected mice fed dl-tyrosine-2-C-14 as compared to muscle proteins obtained from noninfected animals.
Definition
ChEBI: Tyrosine is an alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. It has a role as a Daphnia magna metabolite. It is an alpha-amino acid, a polar amino acid and an aromatic amino acid. It contains a 4-hydroxybenzyl group. It is functionally related to a propionic acid. It is a conjugate base of a tyrosinium. It is a conjugate acid of a tyrosinate(1-).
Properties of DL-Tyrosine
| Melting point: | ≥300 °C (lit.) |
| Boiling point: | 314.29°C (rough estimate) |
| Density | 1.2375 (rough estimate) |
| refractive index | 1.5270 (estimate) |
| storage temp. | Store at RT. |
| solubility | Aqueous Acid (Slightly), Methanol (Slightly), Water (Slightly) |
| pka | pK1:2.18(+1);pK2:9.11(0);pK3:10.6(OH) (25°C) |
| form | Crystalline |
| color | White to Off-White |
| Water Solubility | Soluble in water. |
| Merck | 14,9839 |
| BRN | 515881 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 556-03-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Amino-3-(4-hydroxyphenyl)-propanoic acid(556-03-6) |
| EPA Substance Registry System | Tyrosine (556-03-6) |
Safety information for DL-Tyrosine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for DL-Tyrosine
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