In recent years, catalytic properties of gold have played a major role in the chemistry of environmentally safe substances. In this study, propionic acid was synthesized using electrochemical oxidation on a gold plate electrode in potassium hydroxide. Five hours of electrochemical reaction at a constant voltage was carried out using the chronocuolometry method. Propionaldehyde was oxidized elec...

The presence of acetate in the bacterial medium leads to a reduction in the growth rate of cells and recombinant protein production. In this study, three compounds including propionic acid, lithium chloride and butyric acid were added to the medium which decreased acetate levels and enhanced recombinant protein production (alpha-synuclein). In fact, propionic acid and lithium chloride are both ...

Propionic acidaemia (OMIM 606054) is an autosomal recessive organic acid metabolism disorder that involves a defective form of propionyl-CoA carboxylase (PCC). The disease usually manifests with acute and potentially fatal episodes of metabolic decompensation and delays in cognitive development. Its association with cardiomyopathy, usually dilated, is well known, and usually manifests during th...

In the title compound, C(10)H(9)Cl(2)NO(3), inversion dimers occur due to pairs of inter-molecular O-H⋯O hydrogen bonds from the carboxyl groups forming R(2) (2)(8) loops. The dimers are linked into C(4) chains along the a axis by inter-molecular N-H⋯O links. A short intra-molecular C-H⋯O contact occurs in the mol-ecule.

In the title compound, C(11)H(12)N(2)O(3)·H(2)O, the water mol-ecule is a hydrogen-bond donor to the double-bond amide and the carbonyl O atoms of two acid mol-ecules; it is also a hydrogen-bond acceptor to the acid -OH and amide -NH- groups. These hydrogen-bonding inter-actions give rise to a layer structure, with the layers parallel to the ab plane.

Simple paper chromatography of urine obtained in the Figlu test has been found satisfactory for determining excess excretion of the imidazole metabolites of histidine. It has been confirmed that examination for these in addition to formiminoglutamic acid is necessary for a full assessment of this test. When excretion of the latter is not abnormal in folic-acid and/or vitamin B(12) deficiency, t...

Materials Propionic acid (>98%), 4-(methylthio)benzaldehyde (>99%), Methyl triflate (MeOTf), triflic acid (>98%) and manganese (II) chloride tetrahydrate (99.9%) were purchased from Wako pure chemical (Osaka, Japan). Pyrrole (>99%) was purchased from Tokyo chemical industry (Tokyo, Japan). Synthesis of

The metabolic products of propionate metabolism in man were studied by determining the pattern of isotope in the urine following the intravenous injection of [lJ%]propionate. A major peak of radioactivity not present in control subjects was found in an organic acid in two patients with propionic acidemia and a patient with methylmalonic acidemia. This labeled compound was characterized as methy...

Cyclopropanone hydrate irreversibly inactivates horseradish peroxidase in a time-dependent manner in the presence of oxidizing agent, hydrogen peroxide. The inhibition reaction is a second order reaction of cyclopropanone hydrate with compound I, the 2 electron-oxidized form of peroxidase, and results in covalent modification of the heme cofactor. A new propionic acid side chain is substituted ...