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LC5906 L-Tyrosine

suitable for use as excipient

 

Order number Packaging Quantity Price €
AC32906 Plastic bottle 1 kg inquire
AC32906 Plastic drum 10 kg inquire

 

Product information
Synonyms 4-Hydroxyphenylalanine
Hill Formula C9H11NO3
HS Code 2922 50 00
EC number 200-460-4
Molar mass 181.19 g/mol
CAS number 60-18-4

 

Chemical and physical data
Solubility 0.38 g/l (20 °C)
Melting point 297 – 298 °C (decomposition)
Molar mass 181.19 g/mol
Density 1.46 g/cm3 (20 °C)
Bulk density 300 kg/m3
pH value 6.5 (0.1 g/l, H2O)

 

Safety information
RTECS YP2275600
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

 

Toxicological data
LD 50 oral LD50 rat > 5110 mg/kg

 

Specifications
Assay (perchloric acid titration, calculated on dried substance) 99.0 – 101.0 %
Identity (IR-spectrum) passes test
Appearance white to almost white, crystalline powder or colorless crystals
Appearance of solution (25 g/l, Hydrochloric acid 2 mol/l) clear and not more intense in color than reference solution Y7
Spec. rotation
– α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance
-11.0° to -12.3°
– α 25/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance -9.8° to -11.2°
Chloride (Cl) ≤ 200 ppm
Sulfate (SO4) ≤ 300 ppm
Heavy metals (as Pb) ≤ 10 ppm
NH4 (Ammonium) ≤ 200 ppm
Fe (Iron) ≤ 10 ppm
Ninhydrin – positive substances (total (TLC)) ≤ 0.5 %
Ninhydrin – positive substances (LC) (phenylalanine) ≤ 0.5 %
Residual solvents (Ph. Eur./USP/ICH) excluded by manufacturing process
Sulfated ash (600 °C) ≤ 0.1 %
Loss on drying (105 °C; 3 h) ≤ 0.3 %

 

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