Endocrinology

MS437 is a potent TSH receptor (TSHR) stimulator with an EC₅₀ value of 13x10^-8 M. MS437 shows potent activation of G_sα, G_αq and Gα₁₂ and up-regulation of thyroglobulin (Tg), sodium iodine symporter (NIS) and TSHR gene expressions.

Chloropyramine hydrochloride is a histamine receptor H1 antagonist which can also inhibit the biochemical function of VEGFR-3 and FAK.

Melanin Concentrating Hormone, salmon TFA (MCH (salmon) TFA) is a 19-amino-acid neuropeptide initially identified in the pituitary gland of teleost fish, which regulates food intake, energy balance, sleep state, and the cardiovascular system. Melanin-concentrating hormone is a ligand for an orphan G protein-coupled receptor (SLC-1/GPR24) and MCHR2.

Octamethylcyclotetrasiloxane promotes the anchorage-independent growth of MCF-10A and MCF-10F cells. Octamethylcyclotetrasiloxane induces DNA damage, inhibits the expression of DNA-repairing protein BRCA1 under long-term and high-concentration exposure. Octamethylcyclotetrasiloxane exhibits intrinsic estrogenic activity.

Allylestrenol is an orally active synthetic anti-androgen sexualsteroid. Allylestrenol can prevent miscarriage in vivo. Allylestrenol significantly affects testosterone progesterone level in rat model. Allylestrenol can reduce ventral prostate weight in rat model.

Amitriptyline hydrochloride (Standard) is the analytical standard of Amitriptyline hydrochloride (HY-B0527A). This product is intended for research and analytical applications. Amitriptyline hydrochloride is an orally active tricyclic antidepressant (TCA). Amitriptyline hydrochloride mainly exerts its antidepressant effect by blocking SERT (K_i = 3.45 nM) and NET (K_i = 13.3 nM), thereby increasing the concentrations of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the synaptic cleft. Amitriptyline hydrochloride is also an agonist at α2A and TrkA/TrkB receptors, thereby exerting analgesic and neurotrophic activities (inhibiting cell apoptosis). Amitriptyline hydrochloride can reduce inflammation, angiogenesis and fibrosis. Amitriptyline hydrochloride binds to DAT (with K_i = 2.58 μM). Amitriptyline hydrochloride has high affinity for a series of receptors and can antagonize muscarinic cholinergic receptors (M1/M2/M3/M4/M5 receptors) (K_i = 11-24 nM), H1 receptors (K_i = 0.5-1.1 nM), adrenergic α1 receptors (K_i = 4.4 nM), etc., resulting in a series of side effects. Amitriptyline hydrochloride can block sodium channels and hERG potassium channel (IC₅₀ = 4.78 μM) and it has cardiotoxicity.

Tizanidine hydrochloride, a skeletal muscle relaxant, is an orally effective central α₂-adrenoceptor agonist (IC₅₀ = 6.9 nmol). Tizanidine hydrochloride primarily exerts muscle relaxation effects by inhibiting the release of excitatory amino acids (glutamate and aspartate) from the presynaptic terminals of spinal cord interneurons. Tizanidine hydrochloride has anti-injury activity and can inhibit gastrointestinal (GI) transport. Tizanidine hydrochloride can inhibit the proliferation, migration, and invasion of lung cancer cells and induce cell apoptosis by upregulating Nischarin and inhibiting the AKT and Wnt3a/β-catenin signaling pathways. Tizanidine hydrochloride can be used to treat spasticity caused by diseases such as multiple sclerosis (MS), stroke, and spinal cord injury (SCI).

Cyclic ADP-ribose ammonium (cADPR ammonium) is a potent second messenger for calcium mobilization that is synthesized from NAD⁺ by an ADP-ribosyl cyclase. Cyclic ADP-ribose ammonium increases cytosolic calcium mainly by Ryanodine receptor-mediated release from endoplasmic reticulum and also by extracellular influx through the opening of TRPM2 channels.

Mequitazine is a potent, and long-acting histamine H₁ antagonist.

Veldoreotide (DG3173) TFA a somatostatin analogue, binds to and activate the somatostatin receptors (SSTR) 2, 4, and 5. Veldoreotide TFA inhibits growth hormone (GH) secretion in adenomas compared with Octreotide (HY-P0036). Veldoreotide has the potential to be used as pain modulating agent

2-Hydroxysaclofen is a potent γ-amino-butyric-acid-B (GABA_B) receptor antagonist. 2-Hydroxysaclofen can abolish nicotine-induced hypolocomotor effects and increases the antinociceptive effects. 2-Hydroxysaclofen can stimulate luteinizing hormone (LH) secretion in female rats.

SCH28080 is a reversible, K⁺-competitive inhibitor of the gastric H,K-ATPase, with a K_i of 0.12 μM. SCH28080 is an effective inhibitor of acid secretion in vivo and with anti-gastric ulcer activity.

Gastrin I, rat (Rat Gastrin-17) is a peptide hormone, can stimulate gastric acid secretion potently.

Chlorotrianisene is a long-acting non-steroidal estrogen and an orally active estrogen receptor modulator. Chlorotrianisene exhibits antiestrogenic activity. Chlorotrianisene potently inhibits the enzyme COX-1 and inhibits platelet aggregation in whole blood.

Sphingosine-1-phosphate-d₇ is the deuterium labeled Sphingosine-1-phosphate. Sphingosine-1-phosphate (S1P) is an agonist of S1P1-5 receptors and a ligand of GPR3, GPR6 and GPR12.?Sphingosine-1-phosphate is an intracellular second messenger and mobilizes Ca2+ as an extracellular ligand for G protein-coupled receptors. Sphingosine-1-phosphate is an important lipid mediator generated from Sphingomyelin (HY-113498) or other membrane phospholipids.

Sodium phosphate dibasic heptahydrate is an orally active and osmotic laxative, often used as a component of over-the-counter gastrointestinal lavage drugs. Sodium phosphate dibasic heptahydrate draws water into the intestinal lumen, maintains electrical neutrality by retaining cations in the intestinal lumen, and thereby alters fecal volume, consistency and phosphate levels. Sodium phosphate dibasic heptahydrate can be used to generate self-assembled calcium phosphate tubular scaffolds, which support the adhesion, survival and elongation of mesenchymal stem cells. Sodium phosphate dibasic heptahydrate can be applied to research on factitious disorders and related fields.

Chloroethene polymer (Polyvinyl chloride) is an orally active vinyl chloride polymer. Chloroethene polymer is cytotoxic, reproductively toxic, and an endocrine disruptor. Chloroethene polymer can be used in the research of packaging inner surfaces, food wrapping paper, agricultural crop coverings, and plastic bottles.

Indacaterol (maleate) (Standard) is the analytical standard of Indacaterol (maleate). This product is intended for research and analytical applications. Indacaterol maleate (QAB149) is an orally active ultra-long-acting β2 adrenergic receptor (ADRB2) agonist. Indacaterol maleate inhibits NF-κB activity in a β-arrestin2-dependent manner, preventing further lung damage and improving lung function in COPD (chronic obstructive pulmonary disorder). Indacaterol maleate can also be used in cardiovascular disease research.

Phenylephrine (Standard) is the analytical standard of Phenylephrine. This product is intended for research and analytical applications. (R)-(-)-Phenylephrine is a selective α₁-adrenoceptor agonist primarily used as a decongestant.

(Z)-11-Octadecenal is a female pheromone with diurnal stability, isolated from the pheromone glands of female rice leaffolder moths.