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L-Tyrosin  Structure

L-Tyrosin

Chemical Properties

Melting point >300 °C (dec.) (lit.)
Boiling point 314.29°C (rough estimate)
alpha  -11.65 º (c=5,DIL HCL/H2O 50/50)
Density  1.34
FEMA  3736 | L-TYROSINE
refractive index  -12 ° (C=5, 1mol/L HCl)
Flash point 176 °C
storage temp.  Store below +30°C.
solubility  1 M HCl: 25 mg/mL
form  powder
pka 2.2(at 25℃)
color  White to Pale-brown
PH 6.5 (0.1g/l, H2O)
Odor odorless
Odor Type odorless
optical activity [α]20/D 11.5±1.0°, c = 4% in 1 M HCl
Water Solubility  0.45 g/L (25 ºC)
JECFA Number 1434
Merck  14,9839
BRN  392441
Stability Stable. Incompatible with strong oxidizing agents, strong reducing agents.
InChIKey OUYCCCASQSFEME-QMMMGPOBSA-N
LogP 0.38
Substances Added to Food (formerly EAFUS) L-TYROSINE
FDA 21 CFR 172.320; 310.545
CAS DataBase Reference 60-18-4(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 42HK56048U
NIST Chemistry Reference Tyrosine(60-18-4)
EPA Substance Registry System L-Tyrosine (60-18-4)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P305+P351+P338-P280a-P304+P340-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38-40
Safety Statements  26-36-37/39-22
WGK Germany  3
RTECS  YP2275600
TSCA  Yes
HS Code  29225000
Hazardous Substances Data 60-18-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 5110 mg/kg
NFPA 704:
1
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