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Conforms to: USP, AJI, EP, CP
| Product Name: | L-Tyrosine | Other Name: | L-Tyrosine;Tyrosine,L-;(-)-α-Amino-p-hydroxyhydrocinnamic acid;L(-)-β-(p-Hydroxyphenyl)alanine;L-(-)-Tyrosine;p-Tyrosine;Benzenepropanoic acid,α-amino-4-hydroxy-,(S)-;L-Phenylalanine,4-hydroxy-;Tyrosine;L-p-Tyrosine;Tyr;4-(2-Amino-2-carboxyethyl)phenol;Propanoic acid,2-amino-3-(4-hydroxyphenyl)-,(S)-;β-(p-Hydroxyphenyl)alanine;(S)-α-Amino-4-hydroxybenzenepropanoic acid;L-Tyr;(S)-Tyrosine;NSC 82624;NSC 9973;(S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid;(2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid;Therigon;H-L-Tyr-OH;L-4-Hydroxyphenylalanine;p-Hydroxyphenylalanine;140-43-2;1991-85-1;46209-14-7;55520-40-6;1207451-88-4;2416148-26-8 |
| CAS No.: | 60-18-4 | Molecular Formula: | C9H11NO3 |
| InChIKeys: | InChIKey=OUYCCCASQSFEME-QMMMGPOBSA-N | Molecular Weight: | 181.19 |
| Exact Mass: | 181.19 | BRN: | 392441 |
| EC Number: | 200-460-4 | UNII: | 42HK56048U |
| DSSTox ID: | DTXSID1023730 | NCI Thesaurus Code: | C915 |
| Color/Form: | FINE SILKY NEEDLES|White crystals | HScode: | 29225000 |
| Categories: | Amino Acids and Derivatives |
| PSA: | 83.6 | XLogP3: | -2.26 |
| Appearance: | White to Pale-brown powder | Density: | 3″>1.46 g/cm3 |
| Melting Point: | 344 °C | Boiling Point: | 385.2±32.0 °C at 760 mmHg |
| Flash Point: | 176 °C | Refractive Index: | 1.614 |
| Water Solubility: | H2O: 0.45 g/L (25 ºC);1 M HCl: 25 mg/mL | Storage Conditions: | Store at RT. |
| Toxicity: | 5110 mg/kg”>LD50 orally in Rabbit: > 5110 mg/kg | Specific rotation: | -11.65 º (c=5,DIL HCL/H2O 50/50) |
| PH: | 5.66 (at isoelectric point) | PKA: | 2.2(at 25 °C) |
| Dissociation Constants: | 2.2 (at 25 °C)|pK values= 2.20, 9.11 and 10.07 for the acid, base and phenol groups, respectively | Collision Cross Section: | 145.7 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|143.97 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|148.26 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|139 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|145.8 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|143.6 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|143.8 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|145.59 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|146.45 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|144.5 Ų [M-H]- |
| Experimental Properties: | OPTICALLY ACTIVE|DECOMP @ 342-344 °C (CLOSED CAPILLARY, BATH PREHEATED TO 280 °C, RAPID HEATING|UV: 6-233 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /Tyrosine (dl)/ |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.