2-Thiazoline-2-ammonium-4-n-butyl-1,2-diphenyl-3,5-pyrazolidinedionate 3,5-Pyrazolidinedione, 4-butyl-1,2-diphenyl-, salt with 2-amino-2-thiazoline 4-Butyl-1,2-diphenyl-3-hydroxy-5-oxo-2-thiazolinyl-2-pyrazolidinium 4-Butyl-1,2-diphenylpyrazolidine-3,5-dione, compound with 4,5-dihydrothiazol-2-amine (1:1) 54749-86-9 EINECS 259-319-0 Fordonal LAS 11871 Phenylbutazone salt with 2-amino-2-thiazoline TZB Thiazolinobutazone