| 摘要 |
The present invention relates to a phosphorylated glyceryl ether aluminum salt represented by the general formula (1): (wherein R<SUP>1 </SUP>represents an alkyl or an alkenyl group with 8 to 32 carbon atoms; R<SUP>2 </SUP>represents a hydrogen atom, a phosphoric acid residue or -CH<SUB>2</SUB>CH(OR<SUP>2</SUP>)CH<SUB>2</SUB>OR<SUP>1 </SUP>(wherein R<SUP>1 </SUP>and R<SUP>2 </SUP>are the same as described above, provided that a repeated binding number is 4 at the most when R<SUP>2 </SUP>is -CH<SUB>2</SUB>CH(OR<SUP>2</SUP>)CH<SUB>2</SUB>OR<SUP>1</SUP>); X<SUP>1 </SUP>represents a hydrogen atom or a phosphoric acid residue, and at least one of X<SUP>1 </SUP>and R<SUP>2 </SUP>is a phosphoric acid residue; Y represents an alkali metal atom or an alkaline earth metal atom; m represents a number from 0.3 to 1, and n represents a number from 0 to 1), and an external dermatological agent containing the same. The compound has benefits such as an excellent pore contracting activity and also a good solubility in oil.
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