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Key Documents

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

description

biological oxygen demand (BOD) 14,000 ppm

Quality Level

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
Catherine Boissier et al.
Journal of pharmaceutical sciences, 101(7), 2512-2522 (2012-04-28)
Nuclear magnetic resonance (NMR) cryoporometry and scanning electron microscopy (SEM) image analysis have been used to investigate the size and shape distribution of pores in pharmaceutical coatings. The coatings were made from a mixture of hydroxypropylcellulose (HPC) and ethylcellulose (EC).

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