2,6-Dihydroxy-4-pyrimidinecarboxylic acid 4-Pyrimidinecarboxylic acid, 1,2,3,6-tetrahydro-2,6-dioxo- 6-Carboxyuracil 6-Uracilcarboxylic acid 65-86-1 Animal galactose factor NSC9791 OROTIC ACID Orodin Oropur Orotonin Orotonsan Oroturic Orotyl Whey factor