A note to our European Union customers
International shipping is currently disabled due to ongoing issues resulting from Brexit
and changes with customs procedures. Please note, once resumed, international shipments will
be subject to VAT and duties and orders can only be placed in acceptance of this.
Northern Ireland
We will only be able to ship to Northern Ireland where a Royal Mail postal option has been chosen.
Other UK orders are unaffected
Price: £5.45
Stock Availability:
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Tyrosine or 4-hydroxyphenylalanine, is one of the 22 amino acids that are used by cells to synthesize proteins.
Minimum Assay: 98.5- 101.5%
Chloride (Cl) Max 400 ppm
Sulfate Max 400 ppm
Iron (Fe) Max 30 ppm
Lead Max 3 ppm
Mercury Max 0.1 ppm
Heavy metals Max 15 ppm
Arsenic Max 1.5 ppm
Loss on drying Max 0.3 %
Residue on ignition Max 0.4 %
Cadmium Max 1 ppm
Hazard Phrases: Not considered harmful under normal laboratory conditions
We can also accept a bank transfer (UK Only)