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49909

Sigma-Aldrich

Lanolin

tested according to Ph. Eur.

Synonym(s):

Adeps lanae, Wool fat

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352211
NACRES:
NA.25

Agency

USP/NF
tested according to Ph. Eur.

Quality Level

autoignition temp.

833 °F

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General description

Lanolin is a wool fat. It is a semisolid of high viscosity. Contact allergy to lanolin (wool alcohols), an important sensitizer, in a central London teaching hospital patch-test population has been reported. Simplified extraction of organochlorine and organophosphorus pesticides, frequently found in lanolin, has been proposed. It is utilized as an emulsifier in pharmaceutical and cosmetic formulations.

Application

Lanolin was used to compose the lanolin ointment to estimate the release kinetics of izotretinon and heparin from various semisolid dosage forms by UV-VIS spectroscopy. It was used to prepare the emulsified aqueous solutions containing crystalline dicarboxylic acid. It may be added as excipient to compose a nanoscale-dispersed eye ointment (NDEO) for the treatment of severe evaporative dry eye.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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H Diserens
Journal - Association of Official Analytical Chemists, 72(6), 991-993 (1989-11-01)
In the proposed method, a light petroleum solution of lanolin (wool fat) is adsorbed on diatomaceous earth in an Extrelut column, and the pesticides are eluted with acetonitrile saturated with light petroleum. After evaporation to a small volume, the extract
Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect.
Zobrist B, et al.
Atmospheric Chemistry and Physics, 6(10), 3115-3129 (2006)
S H Wakelin et al.
The British journal of dermatology, 145(1), 28-31 (2001-07-17)
Lanolin is often stated to be an important sensitizer but some of the available literature is based on the analysis of high-risk patients. To analyse the frequency of contact allergy to lanolin (wool alcohols) in a central London teaching hospital
Andrés Pérez et al.
Journal of AOAC International, 93(2), 712-719 (2010-05-20)
An efficient, fast, and accurate matrix solid-phase dispersion sample cleanup procedure was developed specifically for the determination of pesticide residues in lanolin. The scope of the method for organophosphorus, organochlorine, and pyrethroid insecticides is the same as that of official
Heinrich Dickel et al.
Contact dermatitis, 62(5), 294-302 (2010-06-12)
As a modification of patch testing, the strip patch test was established to obtain more sensitive and reliable test results. Comparative data on diagnostic accuracy for both tests are missing. To compare the diagnostic accuracy of strip patch tests and

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