Measurements of the photodegradation of PABA and some PABA derivatives.

Photo-dermatology Pub Date : 1988-12-01
H Flindt-Hansen, C J Nielsen, P Thune
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引用次数: 0

Abstract

The photodegradation of 4-aminobenzoic acid, 2-ethylhexyl N,N-dimethyl 4-aminobenzoate (Escalol 507) and 1-glyceryl 4-aminobenzoate (Escalol 106), resulting from irradiation by sun lamps, was examined by UV spectroscopy. 2-ethylhexyl N,N-dimethyl 4-aminobenzoate showed the longest half-life, indicating the highest photostability.

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PABA及其衍生物光降解的测定。
用紫外光谱法研究了日光灯照射下4-氨基苯甲酸、2-乙基己基N,N-二甲基4-氨基苯甲酸酯(Escalol 507)和1-甘油- 4-氨基苯甲酸酯(Escalol 106)的光降解过程。2-乙基己基N,N-二甲基4-氨基苯甲酸酯的半衰期最长,光稳定性最高。
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