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556-03-6

556-03-6 structure
556-03-6 structure
  • Name: DL-Tyrosine
  • Chemical Name: (.+-.)-Tyrosine
  • CAS Number: 556-03-6
  • Molecular Formula: C9H11NO3
  • Molecular Weight: 181.189
  • Catalog: Biochemical Common amino acids and protein drugs
  • Create Date: 2018-04-04 08:00:00
  • Modify Date: 2025-08-21 08:24:43
  • DL-Tyrosine is an aromatic nonessential amino acid synthesized from the essential amino acid phenylalanine. DL-Tyrosine is a precursor for several important neurotransmitters (epinephrine, norepinephrine, dopamine)[1].

Name (.+-.)-Tyrosine
Synonyms L-tyrosine zwitterion
hydrogen L-tyrosinate
DL-Tyrosine 25GR
a-Amino-p-hydroxyhydrocinnamic Acid
L-Phenylalanine, 4-hydroxy-
MFCD08059709
DL-TYROSINE USP GRADE
hydrogen tyrosinate
EINECS 209-113-1
TYROSINE,DL
2-Ammonio-3-(4-hydroxyphenyl)propanoate
DL-Tyrosin
DL-TYROSINE
H-Tyr-OH
Tyrosine
Tyrosine, DL-
(±)-Tyrosine
DL-p-Tyrosine
UNII:A9BAT9B32M
L-Tyr
Tyrosine (VAN)
Tyr
(S)-(-)-Tyrosine
(S)-a-Amino-4-hydroxybenzenepropanoic acid
Tyrosine, L-
H-DL-Tyr-OH
α-Amino-β-(4-hydroxyphenyl)propionic acid
b-(p-Hydroxyphenyl)alanine
Benzenepropanoic acid, α-amino-4-hydroxy-, (S)-
Tyrosinum [Latin]
(S)-a-amino-4-hydroxy-Benzenepropanoic acid
(S)-tyrosine
(S)-α-amino-4-hydroxy-Benzenepropanoic acid
Description DL-Tyrosine is an aromatic nonessential amino acid synthesized from the essential amino acid phenylalanine. DL-Tyrosine is a precursor for several important neurotransmitters (epinephrine, norepinephrine, dopamine)[1].
Related Catalog
References

[1]. ClementeBretti, et al. Some thermodynamic properties of dl-Tyrosine and dl-Tryptophan. Effect of the ionic medium, ionic strength and temperature on the solubility and acid–base properties. Fluid Phase Equilibria.

Density 1.3±0.1 g/cm3
Boiling Point 385.2±32.0 °C at 760 mmHg
Melting Point >300ºC
Molecular Formula C9H11NO3
Molecular Weight 181.189
Flash Point 186.7±25.1 °C
Exact Mass 181.073898
PSA 83.55000
LogP 0.38
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.614
Storage condition Store at RT.
Stability Stable. Incompatible with strong oxidizing agents.
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi:Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S36
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 29225000
HS Code 29225000
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