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Captisol

Names

[ CAS No. ]:
182410-00-0

[ Name ]:
Captisol

[Synonym ]:
Disodium 4-({36,38,39,40,41,42,43,44,45,46,47,48,49-tridecahydroxy-5,10,15,20,25,30-hexakis(hydroxymethyl)-35-[(4-sulfonatobutoxy)methyl]-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31 ;.2.2.2.2.2.2.2.2]nonatetracont-37-yl}oxy)-1-butanesulfonate
CS-0731
Sodium Sulphobutylether-beta-cyclodextrin
SBE-Beta-CD
sulfobutyl ether-beta-cyclodextrin sodium salt
SBE-β-CD

Biological Activity

[Description]:

SBE-β-CD is a sulfobutylether β-cyclodextrin derivative used as an excipient or a formulating agent to increase the solubility of poorly soluble drugs.

[Related Catalog]:

Signaling Pathways >> Others >> Others
Biochemical Assay Reagents
Research Areas >> Others

[In Vitro]

SBE-β-CD is a chemically modified β-CD that is a cyclic hydrophilic oligosaccharide which is negatively charged in aqueous media. β-CD functioned is a solubilizer only at low concentrations, whereas SBE7-β-CD exhibits strong solubilizing effects over a wide concentration range[1].

[In Vivo]

SBE-β-CD is a derivatized form of β-cyclodextrin that has been developed as a safe and effective solubilizing agent for drugs being administered by parenteral and other routes (including oral). SBE-β-CD is a cyclic carbohydrate comprised of seven glucose molecules; the resulting truncated cone-like structure being further derivatized with an average of seven sulfobutyl ether groups[2]. The calorimetric data for the Compound 1/SBE-β-CD complex indicates an extremely strong interaction, with an association constant of 2.3±(0.2)×106M-1 at 25°C and 1.6±(0.2)×106M-1 at 37°C[3]. SBE-β-CD alone evokes a mild cardio-depressant effect independent of cocaine treatment (p=0.0001 compared to baseline) but attenuates further cocaine-induced decreases in RPP, dP/dtmax, and dP/dtmaxabs at high cocaine concentrations. No significant effect is seen on line pressure SBE-β-CD alleviates the most pronounced cardiac depression for RPP, dP/dtmax, and dP/dtmaxabs. This differential effect of SBE-β-CD at low and high concentrations produces an interaction effect in the two-way ANOVA for RPP (p<0.0001), dP/dtmax (p=0.0001), and dP/dtmaxabs (p=0.0015), and prevents any overall treatment effect. Infusing SBE-β-CD also attenuates the cardiac depression associated with cocaethylene toxicity for RPP and dP/dtmax. No differences are observed between ethanol-treated controls and cocaethylene plus SBE-β-CD groups[4].

[Animal admin]

Rats[3] A 300 g rat is administered with 1 mL of a 0.1 M SBE-β-CD solution containing 5.64 mg of Compound 1, and assuming an extracellular volume of 90 mL, less than 0.1% of the complex would rapidly dissociate due to the initial effects of dilution. This calculation, combined with the changing blood to plasma ratio in the presence of SBE-β-CD, provides a reasonable explanation for the observed differences in the blood and plasma profiles of Compound 1 after intravenous administration in either the cyclodextrin or cyclodextrin-free formulations. After IV administration of the cyclodextrin formulation, Compound 1 would initially be prevented from distributing into erythrocytes thereby resulting in a whole blood to plasma ratio of less than one. Subsequently, clearance of SBE-β-CD from the circulation would lead to changes in the complexation equilibrium such that the unbound fraction of Compound 1 would increase, thereby reestablishing normal blood to plasma partitioning (i.e. in favour of whole blood) and clearance.

[References]

[1]. Fukuda M, et al.Influence of sulfobutyl ether beta-cyclodextrin (Captisol) on the dissolution properties of a poorly soluble drug from extrudates prepared by hot-melt extrusion.Int J Pharm. 2008 Feb 28;350(1-2):188-196

[2]. Lockwood SF, et al. Improved aqueous solubility of crystalline astaxanthin (3,3'-dihydroxy-beta, beta-carotene-4,4'-dione) by Captisol (sulfobutyl ether beta-cyclodextrin). J Pharm Sci. 2003 Apr;92(4):922-926.

[3]. Charman SA, et al. Alteration of the intravenous pharmacokinetics of a synthetic ozonide antimalarial in the presence of a modified cyclodextrin. J Pharm Sci. 2006 Feb;95(2):256-67

[4]. Fettiplace MR, et al. Cardiac depression induced by cocaine or cocaethylene is alleviated by lipid emulsion more effectively than by sulfobutylether-β-cyclodextrin. Acad Emerg Med. 2015 May;22(5):508-17


[Related Small Molecules]

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Chemical & Physical Properties

[ Molecular Formula ]:
C50H84Na2O41S2

[ Molecular Weight ]:
1451.287

[ Exact Mass ]:
1450.372437

[ PSA ]:
663.21000

[ Appearance of Characters ]:
Solid powder | White to off white

[ Storage condition ]:
2-8℃

[ Water Solubility ]:
Soluble in water.Insoluble in acetone, methanol, chloroform.

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H317

[ Precautionary Statements ]:
P280

[ RIDADR ]:
NONH for all modes of transport

[ RTECS ]:
GU2293470


Related Compounds