Process for isolating 2-(4'-diethylamino-2'-hydroxybenzoyl)benzoic acid hexyl ester
AssigneeBASF SE
InventorsThomas EHLIS, Karin SCHEIN-ALBRECHT, Mathieu BLANCHOT, Dennis KAUFHOLD, Sebastian WLOCH, Helmut KRONEMAYER
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Abstract
The present invention relates to a process for isolating 2-(4′-diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.
Claims21
-15. (canceled)
2-(4′-Diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester having a phthalic acid dialkyl ester content of less than 15 ppm.
2-(4′-Diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester having a purity of at least 99%, a phthalic acid dialkyl ester content of less than 15 ppm, a 1-hexanol content of less than 400 ppm, and a Gardner value of 8.3 or lower.
Dependencies are inferred from the claim text.