L-Thyroxine-d3

SL-2264

L-Thyroxine-d₃, >99% (HPLC)

Isotopic Purity : 98 atom % D

Related CAS No. : [51-48-9] of the unlabelled compound

Synonyms : 3,3′,5,5″-Tetraiodo-L-thyronine-d₃; Levothyroxine-d₃; T4-d₃

IUPAC Name : 3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-L-alanine-d₃

Price And Availability
Pack Size	Price in USD	Add To Shopping Cart	Availability	Shipping Status
5MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
10MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026
25MG	Request A Quote		In Stock	Estimated to ship on 20 September 2026

Applications : L-Thyroxine-d₃ is a deuterium labelled version of L-Thyroxine, which is a synthetic hormone in the treatment of hypothyroidism. DIO enzymes convert biologically active thyroid hormone (Triiodothyronine,T3) from L-Thyroxine (T4).

References : Arici M. et al.: Endocr J. Jan 11,2018; Corriveau S. et al., J. Clin Transl Endocrinol., 2(4), 144-149,2015.

Storage : Keep container tightly closed under nitrogen or argon and refrigerate for long-term shelf life.

Caution : In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves.