Steroids

Cycloartenol (Standard) is the analytical standard of Cycloartenol. This product is intended for research and analytical applications. Cycloartenol, a phytosterol compound, is one of the key precusor substances for biosynthesis of numerous sterol compounds. Cycloartenol inhibits the migration of glioma cells and suppresses the phosphorylation of the p38 MAP kinase. Cycloartenol has a variety of pharmacological activities such as anti-inflammatory, anti-tumor, antioxidant, antibiosis and anti-alzheimer's disease. Cycloartenol also plays an important role in the process of plant growth and development.

Butylphthalide (Standard) is the analytical standard of Butylphthalide. This product is intended for research and analytical applications. Butylphthalide (3-n-Butylphthalide) is an active molecule against cerebral ischemia. It was originally isolated from celery species and has been shown to be effective in stroke animal models.

(-)-(E) -guggulsterone (Standard) is the analytical standard for (-)-(E) -guggulsterone ((E)-Guggulsterone) (HY-N7781). (-)-(E)-Guggulsterone is an orally active natural stereoisomer of Guggulsterone (HY-107738). (-)-(E)-Guggulsterone is an antagonist for the Farnesoid X Receptor (FXR) with an IC₅₀ of 24.06 μM and possesses potent hypolipidemic properties. (-)-(E)-Guggulsterone suppresses dengue virus (DENV) replication by upregulating antiviral interferon responses by inducing HO-1 expression via Nrf2 activation. (-)-(E)-Guggulsterone exhibits antibacterial activities against Bacillus subtilis, Staphylococcus aureus and Pseudomonas aeruginosa. (-)-(E)-Guggulsterone has cardiac protective and antioxidant activities in rats.

Withanoside V (Standard) is the analytical standard of Withanoside V. This product is intended for research and analytical applications. Withanoside V, a withanolide glycoside, exhibits inhibitory activity for tachyphylaxis to Clonidine in isolated guinea-pig ileum.

Ethambutol (dihydrochloride) (Standard) is the analytical standard of Ethambutol (dihydrochloride). This product is intended for research and analytical applications. 0

Sodium taurodeoxycholate hydrate (Standard) is the analytical standard of Sodium taurodeoxycholate hydrate. This product is intended for research and analytical applications. Sodium taurodeoxycholate hydrate, a bile acid, is an amphiphilic surfactant molecule synthesized from cholesterol in the liver. Sodium taurodeoxycholate hydrate activates the S1PR2 pathway in addition to the TGR5 pathway.

Isodeoxycholic acid (7α,12α-Dihydroxycholanoic acid) Standard is the analytical standard of Isodeoxycholic acid (HY-W399297). This product is intended for research and analytical applications. Isodeoxycholic acid (7α,12α-Dihydroxycholanoic acid) is a 3β-hydroxylated secondary bile acid. Isodeoxycholic acid is produced by epimerization of deoxycholic acid by intestinal bacteria. Isodeoxycholic acid is detectable in feces, mainly existing as saponifiable conjugates with long-chain fatty acids. Isodeoxycholic acid participates in the regulation of intestinal physiology.

Smilagenin (Standard) is the analytical standard of Smilagenin. This product is intended for research and analytical applications. Smilagenin (SMI) is a small-molecule steroidal sapogenin from Anemarrhena asphodeloides and Pelargonium hortorum widely used in traditional Chinese medicine for treating chronic neurodegeneration diseases. Smilagenin (SMI) improves memory of aged rats by increasing the muscarinic receptor subtype 1 (M1)-receptor density. Smilagenin (SMI) attenuates Aβ(25-35)-induced neurodegenerationvia stimulating the gene expression of brain-derived neurotrophic factor, may represents a novel therapeutic strategy for AD.

Cholesteryl acetate (Standard) is the analytical standard of Cholesteryl acetate. This product is intended for research and analytical applications. Cholesteryl acetate (Cholesterol 3-acetate) is a cholesterol ester.

5α-Cholestan-3-one (Standard) is the analytical standard of 5α-Cholestan-3-one. This product is intended for research and analytical applications. 5α-Cholestan-3-one is an endogenous metabolite.

Pregnanediol (Standard) is the analytical standard of Pregnanediol. This product is intended for research and analytical applications. Pregnanediol is the major metabolite of progesterone and can be excreted via urine. Pregnanediol offers an indirect way to measure progesterone levels in vivo.

Pregnenolone monosulfate (sodium) (Standard) is the analytical standard of Pregnenolone monosulfate (sodium). This product is intended for research and analytical applications. Pregnenolone monosulfate sodium (3β-Hydroxy-5-pregnen-20-one monosulfate sodium) is a powerful neurosteroid, the main precursor of various steroid hormones including steroid ketones. Pregnenolone monosulfate sodium acts as a signaling-specific inhibitor of cannabinoid CB1 receptor, inhibits the effects of tetrahydrocannabinol (THC) that are mediated by the CB1 receptors. Pregnenolone monosulfate sodium can protect the brain from cannabis intoxication. Pregnenolone monosulfate sodium is also a TRPM3 channel activator, and also can weakly activate TRPM1 channels.

21-Hydroxypregnenolone (Standard) is the analytical standard of 21-Hydroxypregnenolone (HY-113020). This product is intended for research and analytical applications. 21-Hydroxypregnenolone is a CYP17 inhibitor. 21-Hydroxypregnenolone competitively inhibits CYP17-mediated 17α-hydroxylation activity of progesterone, with a Ki value of 36.4 μM.

Tetrahydrocortisone (Standard) is the analytical standard of Tetrahydrocortisone. This product is intended for research and analytical applications. Tetrahydrocortisone is a stress-induced hormone. Tetrahydrocortisone is also a urinary metabolite of Cortisone derived from the reduction of Cortisone by 5-reductase.

25-Hydroxycholesterol (Standard) is the analytical standard of 25-Hydroxycholesterol. This product is intended for research and analytical applications. 25-Hydroxycholesterol (25-OHC) is a metabolite of cholesterol that is produced and secreted by macrophages in response to Toll-like receptor (TLR) activation. 25-hydroxycholesterol is a potent (EC50≈65 nM) and selective suppressor of IgA production by B cells.

16α-Hydroxyestrone (Standard) is the analytical standard of 16α-Hydroxyestrone. This product is intended for research and analytical applications. 16α-Hydroxyestrone (16αOHE) is a major Estradiol metabolite. 16α-Hydroxyestrone (16αOHE) can be used for the research of metabolic disease.

21-Deoxycortisol (Standard) is the analytical standard of 21-Deoxycortisol (HY-113405). This product is intended for research and analytical applications. 21-Deoxycortisol is an adrenal-specific C21 steroid that accumulates via alternative pathways due to 21-hydroxylase (CYP21A2/P450c21) deficiency. 21-Deoxycortisol serves as a sensitive and specific biomarker for steroid 21-hydroxylase deficiency (21OHD).

Strophanthidin (Standard) is the analytical standard of Strophanthidin. This product is intended for research and analytical applications. Strophanthidin is a naturally available cardiac glycoside. Strophanthidin 0.1 and 1 nmol/L increases and 1~100 μmol/L inhibits the Na+/K+-ATPase activities, but Strophanthidin 10 and 100 nmol/L does not affect Na+/K+-ATPase activities in cardiac sarcolemmal. Strophanthidin increases both diastolic and systolic intracellular Ca2+ concentration.

2-Methoxyestradiol (Standard) is the analytical standard of 2-Methoxyestradiol. This product is intended for research and analytical applications. 2-Methoxyestradiol (2-ME2), an orally active endogenous metabolite of 17β-estradiol (E2), is an apoptosis inducer and an angiogenesis inhibitor with potent antineoplastic activity. 2-Methoxyestradiol also destablize microtubules. 2-Methoxyestradio, also a potent superoxide dismutase (SOD) inhibitor and a ROS-generating agent, induces autophagy in the transformed cell line HEK293 and the cancer cell lines U87 and HeLa.

2-Hydroxyestradiol (Standard) is the analytical standard of 2-Hydroxyestradiol. This product is intended for research and analytical applications. 2-Hydroxyestradiol, a metabolite of 17β-estradiol with minimal estrogenic activity, possesses antioxidant effects and reacts with DNA to form stable adducts and exerts genotoxicity.