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  • Wool grease CAS NO.8020-84-6 CAS NO.8020-84-6 CAS NO.8020-84-6

    Cas No: 8020-84-6

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8020-84-6 Usage


A purified, yellowish white, semisolid, fatlike substance extracted from the wool of sheep. It is insoluble in water, but mixes with about twice its weight of water without separation. It is soluble in chloroform and in ether.

Chemical Properties

Hydrous lanolin is a pale yellow-colored, unctuous substance with a faint characteristic odor. When melted by heating on a water bath, hydrous lanolin separates into a clear oily layer and a clear water layer.


lanolin USP (modified) is an emollient and an emulsifier. This is a highly purified lanolin that meets uSP monograph specifications requiring analysis for trace contaminants.

Production Methods

Lanolin is melted, and sufficient purified water is gradually added with constant stirring.

Pharmaceutical Applications

Hydrous lanolin is widely used in topical pharmaceutical formulations and cosmetics in applications similar to those for lanolin. Hydrous lanolin is commonly used in the preparation of waterin- oil creams and ointments. More water may be incorporated into hydrous lanolin than into lanolin.


Hydrous lanolin is used in cosmetics and a number of topical pharmaceutical formulations and is generally regarded as a nontoxic and nonirritant material, although it has been associated with hypersensitivity reactions. See Lanolin for further information.


Hydrous lanolin should be stored in a well-filled, well-closed container protected from light, in a cool, dry place. Normal storage life is 2 years.

Regulatory Status

Included in the FDA Inactive Ingredients Database (ophthalmic, topical, transdermal, and vaginal preparations). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

Check Digit Verification of cas no

The CAS Registry Mumber 8020-84-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,2 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 8020-84:
76 % 10 = 6
So 8020-84-6 is a valid CAS Registry Number.

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