The Purification of Acetoacetic Acid 2, 4-Dinitrophenylhydrazone

Partial purification and resolution of acetoacetic decarboxylase.

Commerical interest in the acetone-butanol fermentation has prompted considerable investigation into methods of solvent production. The bulk of the work on the subject, however, has been concerned chiefly with methods of increasing solvent yields, whereas relatively few studies have dealt with the intermediary metabolism involved. Johnson, Peterson, and Fred (1933) first demonstrated clearly th...

photo -chemical degradation of 2, 4- dichlorophenoxyacetic acid (2, 4-d) in the effluent

background: 2, 4-dichlorophenoxy acetic acid (2, 4-d) is well known as inexpensive herbicides but it can give rise to undesirable pollution. the objective of this investigation was to describe a photo-chemical system for degradation of 2, 4-d. methods: a designed photolytic cell system was used in this study with a 150w or 400w uv lamp. a set of experiments was carried out at ph 1.5, 2.5, 3.5 a...

synthesis of 2-phosphonobutane-1, 2, 4-tricarboxylic acid

2-phosphonobutane-1,2,4-tricarboxylic acid is(pbtc) a member of phosphonate family, and used as corrosion and scale inhibitor in cooling water systems. phosphonocarboxylates as a member of organophosphorus compounds have c-p and p-o bonds in their structures. pbtc is mainly used as carbonate scale inhibitor (caco3), sulphate scale inhibitor (caso4), corrosion inhibitor of low alloyed steel, eff...

The Determination of Pyruvic Acid in Blood in the Presence of Acetoacetic Acid

2-Hydroxy-3-methoxybenzaldehyde 2,4-dinitrophenylhydrazone pyridine monosolvate

The Schiff base molecule of the title compound, C(14)H(12)N(4)O(6)·C(5)H(5)N, was obtained from the condensation reaction of 2-hy-droxy-3-meth-oxy-benzaldehyde and 2,4-dinitro-phenyl-hydrazine. The C=N bond of the Schiff base has a trans arrangement and the dihedral angle between the two benzene rings is 3.49 (10)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring. In the crystal, ...