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419044

Sigma-Aldrich

Cellulose acetate butyrate

average Mn ~70,000

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About This Item

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

form

powder

Quality Level

mol wt

average Mn ~70,000

extent of labeling

12-15 wt. % Acetyl
35-39 wt. % Butyryl
1.2-2.2 wt. % Hydroxyl

refractive index

n20/D 1.475 (lit.)

density

1.25 g/mL at 25 °C (lit.)

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Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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W M Obeidat et al.
Journal of microencapsulation, 22(3), 281-289 (2005-07-16)
The objectives of this investigation are to evaluate the encapsulation efficiency of the anti-thyroid agent 6-n-propyl-2-thiouracil using two polymers of different characteristics (cellulose acetate butyrate polymer, (CAB-551-0.01) and ammonio methacrylate copolymer (Eudragit RL 100) and to study the effect of
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)
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
Decheng Ma et al.
Journal of pharmaceutical and biomedical analysis, 35(4), 779-788 (2004-06-15)
The purpose of this study was to qualitatively and quantitatively determine potential cellulose acetate butyrate (CAB) extractables in a way to meaningfully predict the in vivo exposure resulting from clinical administration. Extractions of CAB-381-20 were performed in several solvent systems
W M Obeidat et al.
Journal of microencapsulation, 21(1), 47-57 (2004-01-14)
Theophylline microspheres were prepared by the emulsion-solvent evaporation method using cellulose acetate butyrate (CAB381-20) and mixtures of CAB381-20(R) and cellulose acetate phthalate. The physical state of the drug, polymers and microspheres surfaces were determined using scanning electron microscopy. For those

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