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191892

Sigma-Aldrich

Hydroxypropyl cellulose

average Mw ~370,000, powder, 20 mesh particle size (99% through)

Synonym(s):

HPC

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About This Item

CAS Number:
9004-64-2
MDL number:
MFCD00132688
UNSPSC Code:
12162002
NACRES:
NA.23

description

biological oxygen demand (BOD) 14,000 ppm

form

powder

autoignition temp.

752 °F

mol wt

average Mw ~370,000

impurities

<5 wt. %

particle size

20 mesh (99% through)

pH

5.0-8.5

interfacial tension mineral oil

12.5 dyn/cm, 0.1 wt. % in H2O (vs. mineral oil)

viscosity

150-400 cP, 2 wt. % in H2O(25 °C, Brookfield, spindle #2) (60 rpm)(lit.)

solubility

H2O: insoluble (above 45 °C)
polar organic solvents: soluble

density

0.5 g/mL at 25 °C (lit.)

InChI

1S/C12H20N2/c1-5-12(13)11-7-6-10(14(3)4)8-9(11)2/h6-8,12H,5,13H2,1-4H3

InChI key

RRHXDYJWVYFMKV-UHFFFAOYSA-N

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General description

Hydroxypropyl cellulose (HPC) is a nonionic derivativeof cellulose. It is a thermosensitive, biodegradable polymer with low criticalsolution temperature.

Application

Hydroxypropyl cellulose can be used to prepare composite nanospheres for drug delivery systems. Hydroxypropyl methacrylate/hydroxy cellulose graft copolymers can be used as matrices for controlled-release tablets. It can also be used as an electrolyte additive to prepare gel polymerelectrolytes for dye-sensitized solar cells.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Hyemin Choi et al.
Journal of pharmaceutical sciences, 101(8), 2941-2951 (2012-05-26)
Living organisms secrete minerals composed of peptides and proteins, resulting in "mesocrystals" of three-dimensional-assembled composite structures. Recently, this biomimetic polymer-directed crystallization technique has been widely applied to inorganic materials, although it has seldom been used with drugs. In this study
Ranjit M Dhenge et al.
International journal of pharmaceutics, 438(1-2), 20-32 (2012-09-11)
The present work focuses on the study of the progression of granules in different compartments along the length of screws in a twin screw granulator (TSG). The effects of varying powder feed rate; liquid to solid ratio and viscosity of
Weibin Deng et al.
Drug development and industrial pharmacy, 39(2), 290-298 (2012-04-25)
The objective of this study was to improve the dissolution rate and to enhance the stability of a poorly water-soluble and low glass-trasition temperature (T(g)) model drug, fenofibrate, in low molecular weight grades of hydroxypropylcellulose matrices produced by hot-melt extrusion
Satomi Onoue et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 46(5), 492-499 (2012-04-14)
The present study was undertaken to develop a solid self-emulsifying drug delivery system of coenzyme Q(10) (CoQ(10)/s-SEDDS) with high photostability and oral bioavailability. The CoQ(10)/s-SEDDS was prepared by spray-drying an emulsion preconcentrate containing CoQ(10), medium-chain triglyceride, sucrose ester of fatty
In-Hwan Beak et al.
Chemical & pharmaceutical bulletin, 60(11), 1468-1473 (2012-11-06)
In this study, amorphous solid dispersions containing dutasteride and various excipients, manufactured by spray-drying processes, were characterized to determine the effects on their ability to form supersaturated solutions and to identify the effects of supersaturation on increasing the bioavailability of
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