C0926

(2-idrossipropil)-β-ciclodestrina

powder, BioReagent, suitable for cell culture

• Sinonimo/i: 2-hydroxypropylether, Beta-cyclodextrin
• Numero CAS: 128446-35-5
• Numero CE: 420-920-1
• Codice UNSPSC: 12352201
• ID PubChem: 24892288
• NACRES: NA.77

Proprietà

• Origine biologica: corn starch
• Livello qualitativo: 300
• Nome Commerciale: BioReagent
• Stato: powder
• PM: 1396 Da
• Grado di funzionalizzazione: 4-10 (determined by NMR)
• tecniche: cell culture | mammalian: suitable
• Condizioni di spedizione: ambient
• Temperatura di conservazione: room temp
• Stringa SMILE: CC(O)COCC1OC2OC3C(COCC(C)O)OC(OC4C(COCC(C)O)OC(OC5C(COCC(C)O)OC(OC6C(COCC(C)O)OC(OC7C(COCC(C)O)OC(OC8C(COCC(C)O)OC(OC1C(OCC(C)O)C2OCC(C)O)C(OCC(C)O)C8OCC(C)O)C(OCC(C)O)C7OCC(C)O)C(OCC(C)O)C6OCC(C)O)C(OCC(C)O)C5OCC(C)O)C(OCC(C)O)C4OCC(C)O)C(OCC(C)O)C3OCC(C)O
• InChI: 1S/C63H112O42/c1-22(64)8-85-15-29-50-36(71)43(78)57(92-29)100-51-30(16-86-9-23(2)65)94-59(45(80)38(51)73)102-53-32(18-88-11-25(4)67)96-61(47(82)40(53)75)104-55-34(20-90-13-27(6)69)98-63(49(84)42(55)77)105-56-35(21-91-14-28(7)70)97-62(48(83)41(56)76)103-54-33(19-89-12-26(5)68)95-60(46(81)39(54)74)101-52-31(17-87-10-24(3)66)93-58(99-50)44(79)37(52)72/h22-84H,8-21H2,1-7H3/t22?,23?,24?,25?,26?,27?,28?,29-,30-,31?,32?,33?,34?,35?,36?,37-,38?,39-,40+,41+,42+,43?,44+,45?,46+,47+,48+,49+,50+,51+,52-,53-,54-,55-,56-,57+,58-,59+,60-,61-,62-,63-/m1/s1; ODLHGICHYURWBS-RYJYQAAZSA-N

Descrizione

Descrizione generale

Cyclodextrins are cyclic oligosaccharides consisting of 6, 7, or 8 glucopyranose units, usually referred to as α-, β-, or γ-cyclodextrins, respectively. These compounds have rigid doughnut-shaped structures making them natural complexing agents. The unique structures of these compounds owe their stability to intramolecular hydrogen bonding between the C2- and C3-hydroxyl groups of neighboring glucopyranose units. The molecule takes on the shape of a torus with the C2- and C3-hydroxyls located around the larger opening and the more reactive C6-hydroxyl aligned around the smaller opening. The arrangement of C6-hydroxyls opposite the hydrogen bonded C2- and C3-hydroxyls forces the oxygen bonds into close proximity within the cavity, leading to an electron rich, hydrophobic interior. The size of this hydrophobic cavity is a function of the number of glucopyranose units forming the cyclodextrin.

The solubility of natural cyclodextrins is very poor. In the late 1960′s, it was discovered that chemical substitutions at the 2, 3, and 6 hydroxyl sites would greatly increase solubility. Most chemically modified cyclodextrins are able to achieve a 50% (w/v) concentration in water.

Cavity size is the major determinant as to which cyclodextrin is used in complexation. The cavity diameter of β-cyclodextrins or β-glucopyranose unit compounds is well-suited for use with molecules the size of hormones, vitamins and many compounds frequently used in tissue and cell culture applications. For this reason, β-cyclodextrin is most commonly used as a complexing agent.

Applicazioni

La solubilità dei farmaci lipofili aumenta linearmente con la concentrazione di idrossipropil-β-ciclodestrina (HBC) in soluzione acquosa a causa del complesso che si forma fra HBC e il farmaco. Questo complesso di tipo ospite/ospitante si forma tra il farmaco e la cavità non polare della HBC aumentando la solubilità. È possibile liofilizzare le soluzioni per produrre polveri facilmente solubili. Non tossico nel coniglio e nel topo.

Nota sulla preparazione

Solutions may be stored for several months at 4°C. Solid should be stored tightly sealed at room temperature.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): >752.0 °F
• Punto d’infiammabilità (°C): > 400 °C
• Dispositivi di protezione individuale: Eyeshields, Gloves, type N95 (US)