Skin lightening agent
US12151010B2 · kind B2 · utility
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2References
3Claims
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Assignee
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Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Dec 5, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/434
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The object is to provide a skin whitening agent having an excellent skin whitening effect. A compound expressed by the following Formula (1), or an acid addition salt thereof is used as an active ingredient of the skin whitening agent: wherein, X represents an alkylene group having 1 to 2 carbon atoms, where a hydrogen atom may be substituted with a methyl group; Y represents COOR1 or CH2OR2; R1 represents a hydrogen atom, or an optionally branched alkyl group having 1 to 6 carbon atoms; and R2 represents a hydrogen atom or an optionally branched acyl group having 1 to 6 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.