{"product_id":"m13515","title":"Rapacuronium bromide","description":"\u003cp style=\"padding-left:1em;\"\u003eRapacuronium bromide is an allosteric modulator of muscarinic acetylcholine receptor (mAChR).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProduct information\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCAS Number:\u003c\/strong\u003e 156137-99-4\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMolecular Weight:\u003c\/strong\u003e 677.80\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFormula:\u003c\/strong\u003e C37H61BrN2O4\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSynonym:\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"padding-left:1em;\"\u003eOrg 9487\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eChemical Name:\u003c\/strong\u003e 1-[(1R,2S,3aS,3bR,5aS,7S,8S,9aS,9bS,11aS)-7-(acetyloxy)-3a,3b,5a,9b-tetrahydrogenio-9a,11a-dimethyl-8-(piperidin-1-yl)-1-(propanoyloxy)-hexadecahydro-1H-cyclopenta[a]phenanthren-2-yl]-1-(prop-2-en-1-yl)piperidin-1-ium bromide\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eSmiles:\u003c\/strong\u003e [Br-].CC(=O)O[C@H]1C[C@@H]2CC[C@@H]3[C@H](CC[C@]4(C)[C@@H](OC(=O)CC)[C@H](C[C@H]43)[N+]3(CC=C)CCCCC3)[C@@]2(C)C[C@@H]1N1CCCCC1\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eInChiKey:\u003c\/strong\u003e LVQTUXZKLGXYIU-GWSNJHLMSA-M\u003c\/p\u003e\u003cp style=\"text-indent:-1em;padding-left:1em;\"\u003e\u003cstrong\u003eInChi:\u003c\/strong\u003e InChI=1S\/C37H61N2O4.BrH\/c1-6-20-39(21-12-9-13-22-39)32-24-30-28-15-14-27-23-33(42-26(3)40)31(38-18-10-8-11-19-38)25-37(27,5)29(28)16-17-36(30,4)35(32)43-34(41)7-2;\/h6,27-33,35H,1,7-25H2,2-5H3;1H\/q+1;\/p-1\/t27-,28+,29-,30-,31-,32-,33-,35-,36-,37-;\/m0.\/s1\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 DMSO : ≥ 125 mg\/mL (184.42 mM).\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;\"\u003eRapacuronium binds to all muscarinic receptor subtypes at physiologically relevant concentrations and displays micromolar affinity and slight selectivity towards M2 receptor. Rapacuronium exhibits complex effects on the kinetics of ACh binding and subsequent receptor activation estimated from stimulation of [35S]GTPγS binding. Rapacuronium alone concentration dependently lowers [35S]GTPγS binding to membranes with a maximal effect of approximately 25% at odd-numbered subtypes and 15% at even-numbered subtypes, with EC50 ranging from 28 μM at M2 receptors to 76 μM at M3 receptors. While the EC50 values of Rapacuronium in inhibiting [35S]GTPγS binding at individual subtypes correlated with affinities measured in binding experiments with [3H]ACh (R2 = 0.76) they are lower (4- to 12-fold) at all subtypes. Measurements of ACh-stimulated [35S]GTPγS binding in the presence of 0.1, 1 and 10 μM Rapacuronium shows differential effects of Rapacuronium on receptor activation by an orthosteric agonist at individual receptor subtypes. At even-numbered subtypes 1 μM and 10 μM Rapacuronium significantly increases ACh EC50, with lowering of EMAX at 10 μM Rapacuronium. At this subtype 0.1 and 1 μM Rapacuronium causes a significant 2-fold decrease in ACh EC50 and approximately 60% and 35% increase in EMAX, respectively. Rapacuronium at 10 μM increases ACh EC50 by about 3-fold without a significant change in EMAX. Rapacuronium (0.1 - 10 μM) has no effect on ACh efficacy at the M1 and M5 subtypes but decreases the EC50 of ACh in stimulating [35S]GTPγS binding by 1.5- and 4-fold, respectively, at concentrations of 0.1 and 1 μM. However, this effect is not evident at 10 μM Rapacuronium.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn Vivo:\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"padding-left:1em;\"\u003eTime course of the neuromuscular effects of Rapacuronium following the administration of the 2×ED90 doses to rats and guinea-pigs with ED90 of 5953±199 and 187±16 µg\/kg in rat and guinea pig, respectively.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReferences:\u003c\/strong\u003e\u003c\/p\u003e\u003col style=\"padding-left:1em;\"\u003e\n\u003cli\u003eJakubik J, et al. Divergence of allosteric effects of Rapacuronium on binding and function of muscarinic receptors. BMC Pharmacol. 2009 Dec 28;9:15.\u003c\/li\u003e\n\u003cli\u003eVizi ES, et al. A new short-acting non-depolarizing muscle relaxant (SZ1677) without cardiovascular side-effects. Acta Anaesthesiol Scand. 2003 Mar;47(3):291-300.\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":"M13515-2 \/ 2mg solid","offer_id":39462287769739,"sku":"","price":185.0,"currency_code":"USD","in_stock":true},{"title":"M13515-10 \/ 10mg solid","offer_id":39462287802507,"sku":"","price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0389\/1897\/9723\/products\/M13515_1631070581.gif?v=1631955785","url":"https:\/\/www.xcessbio.com\/products\/m13515","provider":"Xcess Biosciences","version":"1.0","type":"link"}