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Merck
CN

419060

Cellulose acetate butyrate

average Mn ~30,000

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About This Item

CAS Number:
UNSPSC Code:
12162002
NACRES:
NA.23
MDL number:
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Product Name

Cellulose acetate butyrate, average Mn ~30,000

SMILES string

O5[C@H]([C@@H]([C@H]([C@@H]([C@H]5COC(=O)CCC)OC(=O)CCC)OC(=O)CCC)OC(=O)CCC)O[C@@H]6[C@H](O[C@H]([C@@H]([C@H]6OC(=O)CCC)OC(=O)CCC)OC(=O)CCC)COC(=O)CCC.O3[C@H]([C@@H]([C@H]([C@@H]([C@H]3COC(=O)C)OC(=O)C)OC(=O)C)OC(=O)C)O[C@@H]4[C@H](O[C@H]([C@@H]([C@H]4OC(=

InChI key

WGKMZYZRLDSCLX-OLZTYWLQSA-N

form

powder

mol wt

average Mn ~30,000

extent of labeling

≥49 wt. % Butyryl
1.4-2.4 wt. % Hydroxyl

refractive index

n20/D 1.475 (lit.)

density

1.25 g/mL at 25 °C (lit.)

Quality Level

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Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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R B Umamaheshwari et al.
Drug delivery, 10(3), 151-160 (2003-08-29)
We prepared cellulose acetate butyrate (CAB)-coated cholestyramine microcapsules as a intragastric floating drug delivery system endowed with floating ability due to the carbon dioxide generation when exposed to the gastric fluid. The microcapsules also have a mucoadhesive property. Ion-exchange resin
Min Soo Park et al.
Langmuir : the ACS journal of surfaces and colloids, 22(10), 4594-4598 (2006-05-03)
We investigate the effects of interfacial energy between water and solvent as well as polymer concentration on the formation of porous structures of polymer films prepared by spin coating of cellulose acetate butyrate (CAB) in mixed solvent of tetrahydrofuran (THF)
Yasunori Miyazaki et al.
International journal of pharmaceutics, 258(1-2), 21-29 (2003-05-20)
The objective of this study was to evaluate mucoadhesive properties and gastrointestinal transit of microspheres made of oppositely charged dextran derivatives and cellulose acetate butyrate (CAB). The microspheres were prepared by emulsion solvent evaporation method. A reference microsphere was made
Soad A Yehia et al.
AAPS PharmSciTech, 10(1), 147-157 (2009-02-10)
The purpose of this study was to formulate budesonide (BUD) compression-coated tablets for colonic specific delivery. Pectin and guar gum were used as enzyme-dependent polymers. For comparison purposes, both pH- and time-dependent polymers were also tried. In vitro release studies
Gheorghe Fundueanu et al.
Biomaterials, 26(20), 4337-4347 (2005-02-03)
Sulfopropylated dextran microspheres (SP-Ms), (Dm = 80 microm) loaded with a water soluble drug (Tetracycline HCl), were included in cellulose acetate butyrate (CAB) microcapsules. Spherical CAB microcapsules were obtained by oil in water (o/w) solvent evaporation method in the presence

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