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Merck
CN

419036

Cellulose acetate butyrate

average Mn ~12,000

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About This Item

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

1S/C44H70O19.C28H38O19.C12H22O11/c1-9-17-29(45)53-25-27-37(57-31(47)19-11-3)39(58-32(48)20-12-4)42(61-35(51)23-15-7)44(56-27)63-38-28(26-54-30(46)18-10-2)55-43(62-36(52)24-16-8)41(60-34(50)22-14-6)40(38)59-33(49)21-13-5;1-11(29)37-9-19-21(39-13(3)31)23(40

InChI key

WGKMZYZRLDSCLX-OLZTYWLQSA-N

form

powder

mol wt

average Mn ~12,000

extent of labeling

16-19 wt. % Acetyl, 30-35 wt. % Butyryl

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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Chenyang Xing et al.
Carbohydrate polymers, 92(2), 1921-1927 (2013-02-13)
The eco-friendly poly(propylene carbonate) (PPC)/cellulose acetate butyrate (CAB) blends were prepared by melt-blending in a batch mixer for the first time. PPC and CAB were partially miscible because of the drastically shifted glass transition temperatures of both PPC and CAB
Soad A Yehia et al.
Drug delivery, 18(8), 620-630 (2011-11-25)
The purpose of this study is to increase the lag time and prevent release of budesonide, a corticosteroid drug used in Crohn's disease for the first 5 h and efficiently deliver it to the colon. Eudragit S100 spray-coated capsules and pulsatile
Mitra Jelvehgari et al.
Archives of pharmacal research, 32(7), 1019-1028 (2009-07-31)
The present research work compares the effect of microsphere preparation technique on micromeritics and release behaviors of theophylline microspheres. Microspheres were prepared by oil-in oil (O(1)/O(2)) emulsion solvent evaporation method (ESE) using different ratios of anhydrous theophylline to cellulose acetate
M Constantin et al.
International journal of pharmaceutics, 330(1-2), 129-137 (2006-10-10)
Poly(vinyl alcohol) (PVA) microspheres were prepared by dispersion reticulation with glutaraldehyde and further aminated. These microspheres were firstly loaded with diclofenac (DF) and then entrapped in cellulose acetate butyrate (CAB) microcapsules by an o/w solvent evaporation technique for intestinal delivery
Yasunori Miyazaki et al.
Biological & pharmaceutical bulletin, 26(12), 1744-1747 (2003-12-04)
Mucoadhesive microspheres made of oppositely charged dextran derivatives and cellulose acetate butyrate (Ad-MS) were evaluated for their ability to improve the bioavailability of theophylline (TH) and thiamine disulfide (TDS). A drug suspension (or solution) and non-adhesive microspheres (MS) were used

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