Semaglutide-d₈ tetraTFA 

Semaglutide-d₈ tetraTFA is the deuterium labeled Semaglutide (HY-114118). Semaglutide is a long-acting, selective, competitive GLP-1R agonist that can penetrate the blood-brain barrier. After activating GLP-1R, Semaglutide promotes insulin secretion, inhibits gastric emptying and appetite, and at the same time enhances autophagy, inhibits oxidative stress and apoptosis. Semaglutide also regulates mitochondrial function and lipid metabolism (such as reducing de novo lipogenesis in the liver). Semaglutide has activities such as lowering blood sugar, reducing weight, neuroprotection (such as improving motor function in Parkinson's disease models, reducing α-synuclein aggregation) and improving hepatic steatosis. Semaglutide can be used for the study of neurodegenerative diseases and liver diseases such as type 2 diabetes, obesity, Parkinson's disease, metabolic associated fatty liver disease (MASLD), and cancer^{[1][2][3][4][5]}.

1. This compound can be used as a tracer.
2. This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

4577.72

C₁₉₅H₂₈₇D₈F₁₂N₄₅O₆₇

910463-68-2

Solid

White to off-white

His-{Aib}-Glu-Gly-Thr-{Phe-d8}-Thr-{d-Ser}-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-{Lys-AEEAc-AEEAc-γ-Glu-17-carboxy heptadecanoyl}-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly

H-{Aib}-EGT-{Phe-d8}-T-{d-Ser}-DVSSYLEGQAA-{Lys-AEEAc-AEEAc-γ-Glu-17-carboxy heptadecanoyl}-EFIAWLVRGRG

Room temperature in continental US; may vary elsewhere.

Sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

• [1]. Chang YF, et al. Semaglutide-mediated protection against Aβ correlated with enhancement of autophagy and inhibition of apotosis. J Clin Neurosci. 2020 Nov;81:234-239.   [Content Brief]

  [2]. Liu DX, et al. Semaglutide Protects against 6-OHDA Toxicity by Enhancing Autophagy and Inhibiting Oxidative Stress. Parkinsons Dis. 2022 Jul 13;2022:6813017.    [Content Brief]

  [3]. Wang C, et al. Semaglutide, a glucagon-like peptide-1 receptor agonist, inhibits oral squamous cell carcinoma growth through P38 MAPK signaling pathway. J Cancer Res Clin Oncol. 2025 Mar 7;151(3):103.   [Content Brief]

  [4]. Zhang L, et al. Semaglutide is Neuroprotective and Reduces α-Synuclein Levels in the Chronic MPTP Mouse Model of Parkinson's Disease. J Parkinsons Dis. 2019;9(1):157-171.    [Content Brief]

  [5]. Soto-Catalán M, et al. Semaglutide Improves Liver Steatosis and De Novo Lipogenesis Markers in Obese and Type-2-Diabetic Mice with Metabolic-Dysfunction-Associated Steatotic Liver Disease. Int J Mol Sci. 2024 Mar 4;25(5):2961.  [Content Brief]