Padimate O is an organic compound related to the water-soluble compound PABA (4-aminobenzoic acid) that is used as an ingredient in some sunscreens. This yellowish water-insoluble oily liquid is an ester formed by the condensation of 2-ethylhexanol with dimethylaminobenzoic acid. Other names for padimate O include 2-ethylhexyl 4-dimethylaminobenzoate, Escalol 507, octyldimethyl PABA, and OD-PABA.

CAS：21245-02-3
中文别名：辛基-二甲基-对氨基苯甲酸;二甲基PABA乙基己酯;4-(二甲氨基)苯甲酸2-乙基己酯;对-N,N-二甲氨基苯甲酸异辛酯;二甲氨苯酸辛酯;对二甲氨基苯甲;
英文别名：4-(Dimethylamino)benzoic Acid 2-Ethylhexyl Ester;Sundown;Octyl 4-(Dimethylamino)benzoate;N,N-dimethyl-p-aminobenzoic acid-2-ethylhexyl ester;Arlatone UVB;Escalol 507;2-Ethylhexyl-p-dimethyl-aminobenzoate;2-ethylhexyl N,N-dimethyl-p-aminobenzoate;2-ETHYLHEXYL 4-DIMETHYLAMINOBENZOATE;Octyl-dimethyl-PABA (OD-PABA)(Padimate O);2-Ethylhexyl 4-(Dimethylamino)benzoate;p-dimethylaminobenzoic acid 2-ethylhexyl ester;Oxifenamate;2-ethylhexyl 4-N,N-dimethylaminobenzoate;Padimate-O;Radiacare Lip Balm;
分子式：C17H27NO2
分子量：277.402
精确质量：277.204
Psa：29.54
Logp：4.1258

MDL号：MFCD00017526
PubChem号：24867369
EINECS号：244-289-3

外观与性状：透明至略黄色液体
密度：0.995g/mLat 25°C(lit.)
沸点：325°C(lit.)
闪点：>230°F
折射率：n20/D 1.542(lit.)
蒸汽压：1.25E-07mmHg at 25°C

安全说明：S26-S27-S36
危险类别码：R36/37/38
WGK Germany：2
海关编码：2922499990
危险品标志：Xi

用途
主要用作光引发剂,应用于塑料涂层,油墨和胶粘剂等方面。