Grade: GMP product Tested for sterility and bacterial endotoxins Description: TE-L-Tyrosine is a chemical precursor for O-(2-[¹⁸F]fluoroethyl)-L-tyrosine (FET), a widely used ¹⁸F-labeled amino acid PET tracer. FET is applied in clinical practice for imaging amino acid transport in brain tumors and for differentiation of tumor tissues using PET/CT. Synonyms: O-(2-Tosyloxyethyl)-L-tyrosine tert-butyl ester Molar weight: 677.86 g/mol (net substance) Molecular formula: C₄₁H₄₃NO₆S (net substance) CAS №: 478037-15-9 PubChem CID: 24861151 Retest date: Not less than 18 months from the manufacturing date Packaging: 2R/4ml or 8R/10ml Type I glass vials with bromobutyl rubber stoppers Storage conditions: –20 ±5 °C Transportation at 2–8 °C (less than 1 month) Available quantities: 0.1 mg; 1.0 mg; custom quantity upon request