Deuterium (²H, D)

L-Tryptophan-d₈ is the deuterium labeled L-Tryptophan. L-Tryptophan (Tryptophan) is an essential amino acid that is the precursor of serotonin, melatonin, and vitamin B3.

L-Citrulline-d₄ is the deuterium labeled L-Citrulline. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway.

Fosribnicotinamide-d₄ (β-Nicotinamide mononucleotide-d₄) is the deuterium labeled Fosribnicotinamide. Fosribnicotinamide is a product of the nicotinamide phosphoribosyltransferase (NAMPT) reaction and a key NAD+ intermediate. The pharmacological activities of Fosribnicotinamide include its role in cellular biochemical functions, cardioprotection, diabetes, Alzheimer's disease, and complications associated with obesity.

Paclitaxel-d₅ is a deuterium-labeled Paclitaxel. Paclitaxel is a naturally occurring antineoplastic agent and stabilizes tubulin polymerization.

Melatonin-d₄ is deuterium labeled Melatonin. Melatonin is a hormone made by the pineal gland that can activates melatonin receptor. Antioxidative and anti-inflammatory properties. Melatonin is a selective ATF-6 inhibitor and induces human hepatoma cell apoptosis through COX-2 downregulation.

Carbamazepine-d₁₀ is the deuterium labeled Carbamazepine. Carbamazepine (CBZ), a sodium channel blocker, is an anticonvulsant agent.

Sulfamethoxazole-d₄ (Ro 4-2130-d₄) is a deuterium labeled Sulfamethoxazole (HY-B0322). Sulfamethoxazole (Ro 4-2130) is a sulfonamide antibiotic with a widespread antibacterial activity. Sulfamethoxazole inhibits bacterial folate metabolism by competing with 4-Aminobenzoic acid (HY-B1008) (PABA) to act on dihydropteroate synthetase and dihydropteroate reductase. Sulfamethoxazole can be used for the study of urinary tract infections (UTIs), prostatitis, and bronchitis.

TRIA-662-d₃ is the deuterium labeled TRIA-662. TRIA-662 (1-Methylnicotinamide chloride) is an endogenous metabolite. TRIA-662 shows antithrombotic and anti-inflammatory activities.

L-Phenylalanine-d₈ is the deuterium labeled L-Phenylalanine. L-Phenylalanine ((S)-2-Amino-3-phenylpropionic acid) is an essential amino acid isolated from Escherichia coli. L-Phenylalanine is a α2δ subunit of voltage-dependent Ca+ channels antagonist with a K_i of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (KB of 573 μM ) and non-NMDARs, respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals.

Tryptamine-d₄ (hydrochloride) is the deuterium labeled Tryptamine hydrochloride. Tryptamine hydrochloride, a monoamine alkaloid, similar to other trace amines, is believed to play a role as a neuromodulator or neurotransmitter.

p-Coumaric acid-d₆ is the deuterium labeled p-Coumaric acid (HY-N0351). p-Coumaric acid is the abundant isomer of cinnamic acid which has antitumor and anti-mutagenic activities.

Adenosine-d₂ is the deuterium labeled Adenosine. Adenosine (Adenine riboside), a ubiquitous endogenous autacoid, acts through the enrollment of four G protein-coupled receptors: A1, A2A, A2B, and A3. Adenosine affects almost all aspects of cellular physio

Benzoic acid-d₅ is a deuterium substitute for Benzoic acid. Benzoic acid is an aromatic alcohol that occurs naturally in many plants and is a common additive in food, beverages, cosmetics and other products. Benzoic acid can act as a preservative by inhibiting bacteria and fungi.

L-Serine-d₃ is the deuterium labeled L-Serine. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.

Decanoyl-L-carnitine-d₃ (chloride) is the deuterium labeled Decanoyl-L-carnitine chloride.

Acetyl-L-carnitine-d₃-1 (O-Acetyl-L-carnitine-d₃-1) hydrochloride is the deuterium labeled Acetyl-L-carnitine hydrochloride (HY-B0762). Acetyl-L-carnitine (O-Acetyl-L-carnitine; ALCAR) hydrochloride is an orally active mitochondrial energy metabolism regulator and neuroprotectant that can penetrate the blood-brain barrier. Acetyl-L-carnitine hydrochloride selectively enters cells and the brain through the organic cation transporter OCTN2. Acetyl-L-carnitine hydrochloride can participate in fatty acid β-oxidation, promote acetylcholine synthesis, regulate mitochondrial function and inhibit oxidative stress as an acetyl donor. Acetyl-L-carnitine hydrochloride exerts its activity by enhancing energy metabolism, protecting neurons and improving synaptic plasticity. Acetyl-L-carnitine hydrochloride is mainly used in the study of neurodegenerative diseases and metabolic disorder-related diseases such as neonatal hypoxic-ischemic brain damage, Alzheimer's disease, and depression.

Abemaciclib-d₈ is the deuterium labeled Abemaciclib. Abemaciclib (LY2835219) is a selective CDK4/6 inhibitor with IC50 values of 2 nM and 10 nM for CDK4 and CDK6, respectively.

Palmitic acid-d₃ is the deuterium labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. PA can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells.

Calcifediol-d₆ is the deuterium labeled Calcifediol. Calcifediol, a major circulating metabolite of vitamin D3, is a potent VDR ligand.

Glycolic acid-d₂ is the deuterium labeled Glycolic acid. Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour.