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| CAS No.: | 556-02-5 |
|---|---|
| Name: | D-Tyrosine |
| Article Data: | 152 |
| Molecular Structure: | |
|
|
|
| Formula: | C9H11NO3 |
| Molecular Weight: | 181.191 |
| Synonyms: | (R)-3-(p-Hydroxyphenyl)alanine;D-Tyrosin;(R)-2-Amino-3-(p-hydroxyphenyl)propionic acid;H-D-Tyr-OH;D-Tyrosine(556-02-5); |
| EINECS: | 209-112-6 |
| Density: | 1.333 g/cm3 |
| Melting Point: | >300 °C(lit.) |
| Boiling Point: | 385.2 °C at 760 mmHg |
| Flash Point: | 186.7 °C |
| Solubility: | soluble in water |
| Appearance: | white to off-white powder |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36-24/25 |
| PSA: | 83.55000 |
| LogP: | 1.04690 |
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- 73441-42-6METHYL-5-CHLORO-2,2-DIMETHYLVALERATE
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- 958254-66-51H-Imidazo[4,5-b]pyridine-2-carboxaldehyde, 1-methyl-, hydrochloride
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- 894852-01-87-BROMO-2,2-DIMETHYL-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE
- 117888-80-9
(RS)-tyrosinamide hydrochloride
- 556-02-5
tyrosine
| Conditions | Yield |
|---|---|
| With pyridoxal 5'-phosphate monohydrate In aq. buffer at 40℃; for 6h; pH=8.0; Enzymatic reaction; | 99% |
- 556-02-5
tyrosine
| Conditions | Yield |
|---|---|
| Stage #1: C15H15N3*C16H13Cl2NO4 With hydrogenchloride In acetonitrile at 20℃; for 1h; Stage #2: With triethylamine In water at 20℃; for 1h; | 90% |
- 3417-91-2, 3728-20-9, 68697-61-0
tyrosine methyl ester hydrochloride
A
- 556-02-5
tyrosine
B
- 3410-66-0
D-tyrosine methyl ester
C
- 60-18-4
L-tyrosine
| Conditions | Yield |
|---|---|
| at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yields of byproduct given; | A n/a B 86% C n/a |
| at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
| Conditions | Yield |
|---|---|
| With D-Alanine; meso-diaminopimelate dehydrogenase; pyridoxal 5'-phosphate; alcohol dehydrogenases from Bacillus stearothermophilus; alcohol dehydrogenases from Thermoanaerobacter brockii; NADH In isopropyl alcohol at 35℃; for 12h; pH=8; Reagent/catalyst; Enzymatic reaction; enantioselective reaction; | 62.3% |
| Conditions | Yield |
|---|---|
| With sodium hydroxide; oxygen; 2-amino-2-hydroxymethyl-1,3-propanediol In water at 30℃; for 1h; pH=7.3; Resolution of racemate; Enzymatic reaction; enantioselective reaction; | 47% |
| durch Einw. von wachsender Hefe in Gegenwart von Malzextrakt oder Hefeautolysat; | |
| With oidium lactis |
- 41516-11-4
N-formyl-DL-tyrosine
- 556-02-5
tyrosine
| Conditions | Yield |
|---|---|
| With water; brucine |
- 117888-79-6
D-tyrosine amide; hydrochloride
- 556-02-5
tyrosine
| Conditions | Yield |
|---|---|
| With hydrogenchloride |
- 673-06-3
D-(R)-phenylalanine
A
- 556-02-5
tyrosine
B
- 24008-77-3
(2R)-2-amino-3-(2-hydroxyphenyl)propanoic acid
C
- 32140-49-1
m-hydroxy-D-phenylalanine
| Conditions | Yield |
|---|---|
| With sulfuric acid; 5-ethyl-10-methyl-2,4-dioxo-2,3,4,10-tetrahydrobenzo[g]pteridin-5-ium perchlorate at 20 - 50℃; Product distribution; various acid concentration; anaerob condition; | |
| With air; 5-ethyl-10-methyl-2,4-dioxo-2,3,4,10-tetrahydrobenzo[g]pteridin-5-ium perchlorate In sulfuric acid at 20℃; Product distribution; Mechanism; hydroxylating ability of the system; other temperatures and acid; other oxidant or without them; |
A
- 556-02-5
tyrosine
B
- 146255-66-5
2-amino-2-(3,5-dihydroxyphenyl)acetic acid
C
- 155435-50-0
Amino-{3-[4-(amino-carboxy-methyl)-2-chloro-phenoxy]-4-hydroxy-phenyl}-acetic acid
| Conditions | Yield |
|---|---|
| With hydrogenchloride; mercaptoacetic acid at 110℃; for 24h; | A n/a B n/a C n/a D 39 mg |
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Chemistry
Molecular Structure:
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Molecular Formula: C9H11NO3
Molecular Weight: 181.1885
IUPAC Name: (2R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid
Synonyms of D-Tyrosine (CAS NO.556-02-5): EINECS 209-112-6 ; (R)-(+)-Tyrosine;rarechem ab pp 1343 ; (R)-(+)-3-(4-Hydroxyphenyl)-d-alanine ; (R)-2-Amino-3-(4-hydroxyphenyl)propionic acid;TYROSINE, D- ; 3-(4-Hydroxyphenyl)-d-alanine ; D-3-(4-Hydroxyphenyl)alanine;d(+)-tyrosine
CAS NO: 556-02-5
Product Categories: Amino Acids Derivatives ; AMINO ACIDS ; Tyrosine [Tyr, Y] ; Amino Acids and Derivatives ; alpha-Amino Acids ; Biochemistry ; Amino Acids and Derivatives
Melting point: >300 °C
Index of Refraction: 1.614
Molar Refractivity: 47.37 cm3
Molar Volume: 135.8 cm3
Surface Tension: 65.7 dyne/cm
Density: 1.333 g/cm3
Flash Point: 186.7 °C
Enthalpy of Vaporization: 66.87 kJ/mol
Boiling Point: 385.2 °C at 760 mmHg
Vapour Pressure: 1.27E-06 mmHg at 25°C
Uses
D-Tyrosine (CAS NO.556-02-5) is an amino acid synthesized in the body from the essential amino acid phenylalanine. And it has been used to treat sleep disorders, enhance cognitive function, and alleviate symptoms of ADD.
Safety Profile
Hazard Codes of D-Tyrosine (CAS NO.556-02-5): 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36: Wear suitable protective clothing.
S24/25: Avoid contact with skin and eyes.
WGK Germany: 3
-
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