21245-02-3 (21245-02-3)

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Suppliers

• Sigma-Aldrich - 21245-02-3
  115.50 - 338.10 USD
• Fisher Scientific - Search for 21245-02-3
• TCI - 21245-02-3
  21.00 - 143.00 USD

Most-cited Publications

• Ultraviolet Radiation-induced Suppression of Contact Hypersensitivity in Relation to Padimate O and Oxybenzone (Journal of Investigative Dermatology, 1989)
• Percutaneous absorption of hydroquinone in humans: Effect of 1dodecylazacycloheptan2one (azone) and the 2ethylhexyl ester of 4(dimethylamino)benzoic acid (escalol 507) (Journal of Toxicology and Environmental Health, 1988)
• Illumination of human keratinocytes in the presence of the sunscreen ingredient Padimate-O and through an SPF-15 sunscreen reduces direct photodamage to DNA but increases strand breaks. (Mutation Research-genetic Toxicology and Environmental Mutagenesis, 1999)
• Assay of mixtures of padimate-O and oxybenzone in sunscreen formulations by high-performance liquid chromatography (Journal of Chromatography A, 1984)
• Enhanced Buccal Mucosal Retention and Reduced Buccal Permeability of Estradiol in the Presence of Padimate O and Azone: A Mechanistic Study (Journal of Pharmaceutical Sciences, 2005)
• Evaluation of the mutagenicity of an N-nitroso contaminant of the sunscreen padimate O : N-nitroso-N-methyl-p-aminobenzoic, acid, 2-ethylhexyl ester (NPABAO) (Environmental and Molecular Mutagenesis, 1992)

Safety

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Trends

Alternate Names

• padimate O
• escalol 507
• 4-N,N'-dimethylamino-benzoic acid, 2-ethylhexyl ester
• padimate-O
• Climacel
• 2-ethylhexyl 4-(dimethylamino)benzoate
• Arlatone 507
• 2-ethylhexyl-p-dimethylaminobenzoate
• SMILES
  CCCCC(CC)COC(=O)C1=CC=C(C=C1)N(C)C
• InChIKey
  WYWZRNAHINYAEF-UHFFFAOYSA-N

External Links

• Pubchem - 21245-02-3
• Wikipedia - padimate O
  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.

Synthesis

4-DIMETHYLAMINOBENZOIC ACID  +  3-(CHLOROMETHYL)HEPTANE (Ester from carboxilic acid(SN2))

Reactant  +  Dimethylamine (Chan-Lam coupling reaction)

Synthesis of 21245-02-3 ›

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