{"product_id":"m33546","title":"N-Desmethyl Sildenafil","description":"\u003cp style=\"padding-left:1em;\"\u003eN-Desmethyl Sildenafil (Desmethylsildenafil) is a major metabolite of Sildenafil. Sildenafil is a potent phosphodiesterase type 5 (PDE5) inhibitor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProduct information\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCAS Number:\u003c\/strong\u003e 139755-82-1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMolecular Weight:\u003c\/strong\u003e 460.55\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFormula:\u003c\/strong\u003e C21H28N6O4S\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eChemical Name:\u003c\/strong\u003e 5-(2-ethoxy-5-piperazin-1-ylsulfonylphenyl)-1-methyl-3-propyl-6H-pyrazolo[4, 3-d]pyrimidin-7-one\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eSmiles:\u003c\/strong\u003e CN1N=C(CCC)C2N=C(NC(=O)C1=2)C1=CC(=CC=C1OCC)S(=O)(=O)N1CCNCC1\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eInChiKey:\u003c\/strong\u003e UZTKBZXHEOVDRL-UHFFFAOYSA-N\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eInChi:\u003c\/strong\u003e InChI=1S\/C21H28N6O4S\/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27\/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAppearance:\u003c\/strong\u003e Solid Power\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePurity:\u003c\/strong\u003e ≥98% (or refer to the Certificate of Analysis)\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eSolubility:\u003c\/strong\u003e To be determined\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eShipping Condition:\u003c\/strong\u003e Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eStorage Condition:\u003c\/strong\u003e Dry, dark and -20 \u003csup\u003eo\u003c\/sup\u003eC for 1 year or refer to the Certificate of Analysis.\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eShelf Life:\u003c\/strong\u003e ≥12 months if stored properly.\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eStock Solution Storage:\u003c\/strong\u003e 0 - 4 \u003csup\u003eo\u003c\/sup\u003eC for 1 month or refer to the Certificate of Analysis.\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eDrug Formulation:\u003c\/strong\u003e To be determined\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHS Tariff Code:\u003c\/strong\u003e 382200\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow to use\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn Vitro:\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"padding-left:1em;\"\u003eN-Desmethyl Sildenafil increases the amplitude of electroretinogram (ERG) recorded from the dark-adapted isolated rat retina, most probably through the enhancement of the photoreceptor cell response. The formation of N-Desmethyl Sildenafil is examined using CYP3A supersomes co-expressing human P450 oxidoreductase and cytochrome b5. N-Desmethyl Sildenafil is catalyzed by CYP3A4, CYP3A5, and to a lesser extent by CYP3A7.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReferences:\u003c\/strong\u003e\u003c\/p\u003e\u003col style=\"padding-left:1em;\"\u003e\n\u003cli\u003eRikako Takahiro, et al. Contribution of CYP3A isoforms to dealkylation of PDE5 inhibitors: a comparison between sildenafil N-demethylation and tadalafil demethylenation. Biol Pharm Bull. 2015;38(1):58-65.\u003c\/li\u003e\n\u003cli\u003ePéter Barabás, et al. Sildenafil, N-desmethyl-sildenafil and Zaprinast enhance photoreceptor response in the isolated rat retina. Neurochem Int. 2003 Nov;43(6):591-5.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eProducts are for research use only. Not for human use.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Xcess Biosciences","offers":[{"title":"M33546-2 \/ 2 mg solid","offer_id":39920796500107,"sku":"","price":130.0,"currency_code":"USD","in_stock":true},{"title":"M33546-10 \/ 10 mg solid","offer_id":39920796532875,"sku":"","price":350.0,"currency_code":"USD","in_stock":true},{"title":"M33546-100 \/ 100 mg solid","offer_id":39920796565643,"sku":"","price":2255.0,"currency_code":"USD","in_stock":true},{"title":"M33546-C \/ Contact sales@xcessbio.com for quotation","offer_id":39920796598411,"sku":"","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/1897\/9723\/products\/M33546_1644977787.gif?v=1735785334","url":"https:\/\/www.xcessbio.com\/products\/m33546","provider":"Xcess Biosciences","version":"1.0","type":"link"}