ICI-118551 free base

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MedKoo CAT#: 584685

CAS#: 72795-26-7 (free base)

Description: ICI-118551, also known as ICI-118,551, is a selective beta-2 (β2) adrenergic receptor antagonist. ICI-118551 binds to the β2 subtype with at least 100 times greater affinity than β1 or β3, the two other known subtypes of the beta adrenoceptor. The compound was developed by Imperial Chemical Industries, which was acquired by AkzoNobel in 2008. ICI-118,551 has no known therapeutic use in humans although it has been used widely in research to understand the action of the β2 adrenergic receptor, as few other specific antagonists for this receptor are known.


Chemical Structure

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ICI-118551 free base
CAS# 72795-26-7 (free base)

Theoretical Analysis

MedKoo Cat#: 584685
Name: ICI-118551 free base
CAS#: 72795-26-7 (free base)
Chemical Formula: C17H27NO2
Exact Mass: 277.2042
Molecular Weight: 277.408
Elemental Analysis: C, 73.61; H, 9.81; N, 5.05; O, 11.53

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

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Related CAS #: 72795-01-8 (HCl)   72795-26-7 (free base)   91021-57-7 (racemic)    

Synonym: ICI118551 free base; ICI 118551; ICI-118551; ICI118,551; ICI 118,551; ICI-118,551; ICI-118551.

IUPAC/Chemical Name: (2R,3R)-3-(isopropylamino)-1-((7-methyl-2,3-dihydro-1H-inden-4-yl)oxy)butan-2-ol

InChi Key: VFIDUCMKNJIJTO-BBRMVZONSA-N

InChi Code: InChI=1S/C17H27NO2/c1-11(2)18-13(4)16(19)10-20-17-9-8-12(3)14-6-5-7-15(14)17/h8-9,11,13,16,18-19H,5-7,10H2,1-4H3/t13-,16-/m0/s1

SMILES Code: CC1=CC=C(OC[C@H](O)[C@H](C)NC(C)C)C2=C1CCC2

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 277.408 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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Bilski et al (1983) The pharmacology of a β2-selective adrenoceptor antagonist (ICI-118,551). J.Cardiovasc.Pharmacol. 5 430 PMID: 6191142

Cook et al (1993) β-Adrenoceptor subtypes and the opening of plasmalemmal K+-channels in trachealis muscle: electrophysiological and mechanical studies in guinea-pig tissue. Br.J.Pharmacol. 109 1140 PMID: 8104643

Strosberg and Pietri-Rouxel (1996) Function and regulation of the β3-adrenoceptor. TiPS 17 373 PMID: 8979772

Ten Berge et al (1995) β2-but not β3-adrenoceptors mediate prejunctional inhibition of non-adrenergic non cholinergic contraction of guinea pig main bronchi. Eur.J.Pharmacol. 275 199 PMID: 7796855

Bond et al (1995) Physiological effects of inverse agonists in transgenic mice with myocardial overexpression of the β2-adrenoceptor. Nature 374 272 PMID: 7885448