43 results about "Thiosuccinic acid" patented technology

The present invention relates to compounds of the formula (I) wherein X1 and X2 independently represent O, NH or S, R1 and R2 are independently selected from the group consisting of a C1-C30 hydrocarbyl group, an amino acid bonded via an amide bond or a peptide bonded via an amide bond each having up to 200 amino acids, the conjugated residue X1 or X2 in this case being NH, and hydrogen, both radicals R1 and R2 preferably not being H, wherein R3 is a residue selected from group consisting of —S—R6, wherein R6 is a C1-C30 hydrocarbyl group, at least one of R1 and R2 not being H when X1 and X2 are oxygen, —S—CH2—CH(NH2)(COOH) (cysteine-S-yl), a homologue or derivative (e.g. N-acetyl cysteine-S-yl) thereof, a peptide having up to 200 amino acids which contains at least one amino acid radical with a thiol group, preferably a cysteine radical, and is bonded via the thio sulfur, preferably via the cysteine sulfur (peptide-S-yl), coenzyme A which is bonded via a thiol group or fragments thereof, acyl carrier protein bonded via a thiol group, and dihydrolipoic acid bonded via a thiol group, and pharmaceutically acceptable salts thereof. The present invention also relates to the use of these compounds for preparing a drug and drugs containing the same.

Arsenic trioxide, an inorganic compound, is commercially available anti-cancer agent but it carries significant toxicity. Organic arsenicals, on the other hand, are much less toxic, to the extent that the methylation of inorganic arsenic in vivo into organic arsenicals has been considered a detoxification reaction. New organic arsenic derivatives have been synthesized, including S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid and S-dimethylarsino-thiobenzoic acid, and established its potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia. Results form a basis for the development of S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid, S-dimethylarsino-thiobenzoic acid, and other organic arsenicals as an anti-cancer therapy, combining high efficacy with very low, if any, toxicity.

A demetalating agent for hydrocarbon oil contains one mor mixture of more than two of formic acid, acetic acid, propionic acid and butanoic acid, one or mixture of butanedioic acid and fumaric acid or maleic acid, polyacrylamide, one or mixture of more than two of S-carboxyethyl thiosuccinic acid, 2-mercaptobenzothiazole, hydroxyethylidene biphosphonic acid and 2-hydroxyphosphion acetic acid, and water.

The invention discloses an oil-soluble corrosion inhibitor for gas well tubing and a preparation method thereof, which is used to solve the problem that the existing imidazoline corrosion inhibitors cause imidazoline ring opening under long-term storage, thereby affecting the stability and anticorrosion effect of the corrosion inhibitors The problem. According to the mass fraction, its raw materials are composed of 20-30% main agent and 70-80% compound, wherein the main agent is imidazoline Schiff base, and the compound is the total mass of oil-soluble corrosion inhibitor for gas well tubing Calculated, the compound is composed of 10-15% aromatic azole, 5-10% hydroxyethyl thiosuccinic acid, and 45-65% solvent. The corrosion inhibitor obtained in the present invention is suitable for gas well tubing with low water content, can be quickly adsorbed on the inner wall of the pipeline, and can be adsorbed in the gas well tubing to form a dense corrosion inhibitor protective film. 2 Carbon steel pipelines and equipment in the gas well environment have a good protection effect. It has the characteristics of good planar spreadability and good compatibility with diesel oil, crude oil and condensate oil.

The invention discloses an environment-friendly spinning refining agent for mulberry silks, and a preparation method of the refining agent. The environment-friendly spinning refining agent is prepared from the following raw materials in parts by weight: 10-20 parts of C16 secondary alkyl sodium sulfonate, 10-15 parts of carboxyethyl thiosuccinic acid, 5-12 parts of nonylphenol ethoxylate, 5-10 parts of acetic acid vinyl ester, 1-3 parts of glucose, 3-7 parts of glycerinum, 2-6 parts of sodium aminosalicylate, 1-4 parts of sulfonated succinate diamide salt, 2-5 parts of malic acid, 2-4 parts of potassium sorbate, 1-3 parts of cellulase, 1-4 parts of Double palmitoyl ethylenediamine dipropionate, 1-5 parts of trimethylolpropane, 1-2 parts of sodium tripolyphosphate, 1-3 parts of an anionic surfactant, 2-4 parts of an antifoaming agent, and 1-4 parts of an emulsifying agent. The prepared refining agent has good emulsion and dispersion performances, is small in stimulation to silk textures, and has the function of softening textures. In addition, the invention also discloses a corresponding preparation method.

The invention relates to the field of auxiliaries with functions of degumming and bleaching fibrilia, in particular to a natural nanometer material composition for one-bath degumming and bleaching of fibrilia. The natural nanometer material composition consists of components including, in weight percent, one or two of nanometer clay, sodium carboxyethyl thiosuccinic acid and ethylene diamine tetra sodium, one or two of iminodisuccinic acid and sodium ethanediamine ethylene diamine, alkyl polyglucoside, seconary alkane sulphonate sodium, iso-tridecanol or secondary alcohol polyoxyethylene ether, ordanic silicone defoamer and the balance purified water, and the sum of the components is 100%. Compared with the prior art, the natural nanometer material composition has the advantages that 1), adaptability to degumming and blenching of various hemp bast is high; 2), the stability of hydrogen peroxide under the condition of high-concentration caustic soda is ensured; and 3), production time is shortened, production efficiency is improved by 50% at least, whiteness is increased by 20% at least, and fiber strength is enhanced by 20% at least.