Category: 2150-55-2

Formula: C4H6N2O2S. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, is researched, Molecular C4H6N2O2S, CAS is 2150-55-2, about Toxicokinetic profiles of α-ketoglutarate cyanohydrin, a cyanide detoxification product, following exposure to potassium cyanide. Author is Mitchell, Brendan L.; Bhandari, Raj K.; Bebarta, Vikhyat S.; Rockwood, Gary A.; Boss, Gerry R.; Logue, Brian A..

Poisoning by cyanide can be verified by anal. of the cyanide detoxification product, α-ketoglutarate cyanohydrin (α-KgCN), which is produced from the reaction of cyanide and endogenous α-ketoglutarate. Although α-KgCN can potentially be used to verify cyanide exposure, limited toxicokinetic data in cyanide-poisoned animals are available. The authors, therefore, studied the toxicokinetics of α-KgCN and compared its behavior to other cyanide metabolites, thiocyanate and 2-amino-2-thiazoline-4-carboxylic acid (ATCA), in the plasma of 31 Yorkshire pigs that received KCN (4 mg/mL) i.v. (IV) (0.17 mg/kg/min). α-KgCN concentrations rose rapidly during KCN administration until the onset of apnea, and then decreased over time in all groups with a half-life of 15 min. The maximum concentrations of α-KgCN and cyanide were 2.35 and 30.18 μM, resp., suggesting that only a small fraction of the administered cyanide is converted to α-KgCN. Although this is the case, the α-KgCN concentration increased >100-fold over endogenous concentrations compared to only a three-fold increase for cyanide and ATCA. The plasma profile of α-KgCN was similar to that of cyanide, ATCA, and thiocyanate. The results of this study suggest that the use of α-KgCN as a biomarker for cyanide exposure is best suited immediately following exposure for instances of acute, high-dose cyanide poisoning.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid( cas:2150-55-2 ) is researched.Category: pyrazines.Li, Mei; Huang, Lei; Huai, Li-hua; Chen, Ning published the article 《Effect of DL-ATC on the production of L-cysteine with enzymatic method by Pseudomonas sp. TS1138》 about this compound( cas:2150-55-2 ) in Tianjin Keji Daxue Xuebao. Keywords: Pseudomonas cysteine thiazolecarboxylic acid ATC. Let’s learn more about this compound (cas:2150-55-2).

L-cysteine is an elementary S-containing amino acid, which has been widely used in medicines, food additives, and cosmetics. Effect of DL-ATC on the conditions of enzyme production process by Pseudomonas sp. TS1138 and enzymic transformation of L-cysteine was discussed. The results show that DL-ATC add in the medium has an inducible impact on enzyme production On account of the interaction of the L-cysteine yield and conversion ratio of DL-ATC, the optimal concentration of DL-ATC is confirmed at about 9 g/L-1. The L-cysteine yield is increased by 56.25% with the DL-ATC interval feeding method.

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Reference of 2-Amino-4,5-dihydrothiazole-4-carboxylic acid. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, is researched, Molecular C4H6N2O2S, CAS is 2150-55-2, about Microbial conversion of DL-2-amino-Δ-thiazoline-4-carboxylic acid to L-cysteine and L-cystine: screening of microorganisms and identification of products. Author is Sano, Konosuke; Yokozeki, Kenzo; Tamura, Fumihide; Yasuda, Naohiko; Noda, Ichiro; Mitsugi, Koji.

Microorganisms able to form L-cysteine from DL-2-amino-Δ2-thiazoline-4-carboxylic acid (DL-ATC), an intermediate in the chem. synthesis of DL-cysteine, were isolated from soil samples and classified as Pseudomonas AJ3854, Pseudomonas cohaerens, P. desmolytica, and P. ovalis. Thirteen L-cysteine-producing bacteria were also found among 463 stock cultures representing 37 genera. Intact cells of Pseudomonas AJ 3854 produced 6.1 mg of L-cysteine and(or) L-cystine per mL from 10 mg of DL-ATC.3H2O per mL, a molar yield of 100%. This suggests that racemization and asym. hydrolysis occurred simultaneously in this incubation mixture After complete oxidation of cysteine, crystalline cystine was isolated; its configuration was L, based on data from x-ray diffraction, microbioassay, and optical rotation.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Decamethrin metabolism in rats, published in 1978, which mentions a compound: 2150-55-2, Name is 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, Molecular C4H6N2O2S, Synthetic Route of C4H6N2O2S.

On oral administration to male rats, the pyrethroid insecticide decamethrin (I) [52918-63-5] and various metabolites derived from its acid and alc. fragments were almost completely eliminated from the body within 2-4 days. Metabolites of the cyano substituent were eliminated more slowly, especially from the skin and stomach, due in the latter case to temporary retention of thiocyanate which was formed from released cyanide. The excreted metabolites included: esters monohydroxylated at the 2′, 4′, and 5 positions of the alc. moiety; 2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylic acid [59952-39-5] and its glucuronide [66855-97-8] and glycine conjugate [66855-98-9] and a hydroxylated derivative [66855-99-0] of this acid, with the hydroxymethyl group trans to the carboxyl, and its glucuronide [66856-00-6]; 3-phenoxybenzoic acid [3739-38-6] and its glucuronide [57991-35-2] and glycine conjugate [57991-36-3], 3-(4-hydroxyphenoxy)benzoic acid [35065-12-4] and its glucuronide [66856-01-7] and sulfate conjugate [58218-91-0], and 3-(2-hydroxyphenoxy)benzoic acid sulfate [61183-26-4]; thiocyanate [302-04-5] and 2-iminothiazolidine-4-carboxylic acid [2150-55-2]. Trans-Decamethrin [64363-96-8] was also rapidly metabolized in rats.

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Recommanded Product: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, is researched, Molecular C4H6N2O2S, CAS is 2150-55-2, about Fed-batch fermentation kinetics of L-cysteine producing Pseudomonas strain TS1138.

L-cysteine was produced by means of microbial transformation of DL-2-amino-Δ2-thiazoline-4-carboxylic acid (DL-ATC) in the presence of L-cysteine synthesizing enzyme from Pseudomonas sp. TS1138. Based on the exptl. data of fed-batch fermentation in 5 L fermentation reactor, the kinetic model of cell growth, enzyme production and substrate consumption were constructed. Three kinetic models were in good agreement with the exptl. results through proper anal. by software MATALAB. The kinetic models appeared to provide a reasonable description for each parameter in the fermentation

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Zwitterion structure and acylative ring-opening reactions of 2-aminothiazoline-4-carboxylic acid》. Authors are Gawron, Oscar; Fernando, Joseph; Keil, John; Weismann, T. J..The article about the compound:2-Amino-4,5-dihydrothiazole-4-carboxylic acidcas:2150-55-2,SMILESS:O=C(C1N=C(N)SC1)O).Name: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid. Through the article, more information about this compound (cas:2150-55-2) is conveyed.

pKA values (pK1 2.03, pK2 8.48), variation of optical rotation with pH and other phys. properties indicate that 2-aminothiazoline-4-carboxylic acid is a zwitterion in solution and in the solid state anti that pK2 can be ascribed to ionization from the ring nitrogen. Acylation of 2-aminothiazoline-4-carboxylic acid in aqueous medium is accompanied by ring opening. With Ac2O N’, S-diacetyl-N-carbamoylcysteine is obtained and with BzCl S-benzoyl-N-carbamylcysteine and 2-imino-3-benzoylthiazolidine-4-carboxylic acid are obtained. Structures of the acylated products were proven by chem. methods and by interpretation of nuclear magnetic resonance data

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 2150-55-2, is researched, SMILESS is O=C(C1N=C(N)SC1)O, Molecular C4H6N2O2SJournal, Weishengwuxue Tongbao called Study on L-cystine conversion technology by Pseudomonas putida TS1138, Author is Liu, Chunqin; Yu, Yangsheng; Bai, Gang; Yang, Wenbo; Chen, Ning; Huai, Lihua, the main research direction is Pseudomonas cystine cysteine.Quality Control of 2-Amino-4,5-dihydrothiazole-4-carboxylic acid.

A technol. of L-cystine production was studied in this paper, which included microbial enzymic conversion of DL-2-amino-Δ2-thiazoline-4- carboxylic acid (DL-ATC) to L-cysteine, subsequent oxidization of L-cysteine to L-cystine and its purification The cells of Pseudomonas putida TS1138 could be repetitively used as the enzyme sources to convert the substrate DL-ATC to L-cysteine. After being oxidized by 2% dimethy-sulfoxide (DMSO), L-cystine could be harvested and further purified by the pos. ion-exchange resin 001*7. High Performance Liquid Chromatog. (HPLC) identified the purified L-cystine as having a total recovery of 78.55% and purity of 99.12%. This study demonstrated an efficient and convenient method for L- cystine production, which overcame the instability of enzymes, troublesome procedures and high cost of enzyme immobilization as contrasted to the traditional method. All in all, it provides a new approach for industrial production of L- cystine as well as L-cysteine.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid(SMILESS: O=C(C1N=C(N)SC1)O,cas:2150-55-2) is researched.Category: tetrahydroquinoline. The article 《Enhanced biocatalytic production of L-cysteine by Pseudomonas sp. B-3 with in situ product removal using ion-exchange resin》 in relation to this compound, is published in Bioprocess and Biosystems Engineering. Let’s take a look at the latest research on this compound (cas:2150-55-2).

Bioconversion of DL-2-amino-Δ2-thiazoline-4-carboxylic acid (DL-ATC) catalyzed by whole cells of Pseudomonas sp. was successfully applied for the production of L-cysteine. It was found, however, like most whole-cell biocatalytic processes, the accumulated L-cysteine produced obvious inhibition to the activity of biocatalyst and reduced the yield. To improve L-cysteine productivity, an anion exchange-based in situ product removal (ISPR) approach was developed. Several anion-exchange resins were tested to select a suitable adsorbent used in the bioconversion of DL-ATC for the in situ removal of L-cysteine. The strong basic anion-exchange resin 201 × 7 exhibited the highest adsorption capacity for L-cysteine and low adsorption for DL-ATC, which is a favorable option. With in situ addition of 60 g L-1 resin 201 × 7, the product inhibition can be reduced significantly and 200 mmol L-1 of DL-ATC was converted to L-cysteine with 90.4 % of yield and 28.6 mmol L-1 h-1 of volumetric productivity. Compared to the bioconversion without the addition of resin, the volumetric productivity of L-cysteine was improved by 2.27-fold using ISPR method.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Asymmetric synthesis of S-carboxymethyl-L-cysteine by a chemicoenzymic method, published in 1988-09-30, which mentions a compound: 2150-55-2, Name is 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, Molecular C4H6N2O2S, Electric Literature of C4H6N2O2S.

A chemienzymic method is developed for production of S-carboxymethyl-L-cysteine (I) from DL-2-aminothiazoline-4-carboxylic acid (II) in the presence of ClCH2CO2H using a hydrolyzing system. The carboxymethylation of L-cysteine with ClCH2CO2H to I proceeded effectively at 26° and pH ≥8.0, the yield reaching nearly 100%. The carboxymethylation of II with ClCH2CO2H was not observed Next, the production of I from II in the presence of ClCH2CO2H was examined using rinsed cells of Pseudomonas desmolytica AJ-11898. About 10 g I/L was produced from 18 g II/L in 8 h, the molar yield being 45%. This finding shows that the aminothiazolinecarboxylate racemase in P. desmolytica AJ-11898 may be inhibited by the ClCH2CO2H added to the reaction mixture In fact, the II remaining in the reaction mixture was in the D-form. Moreover, the yield of L-cysteine from DL-II in the absence of ClCH2CO2H was ∼50% when cells of AJ-11898 pretreated with SH reagents were used as the enzyme source.

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Formula: C4H6N2O2S. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid, is researched, Molecular C4H6N2O2S, CAS is 2150-55-2, about Microbial enzyme conversion of L-cysteine and L-cystine. Author is Liu, Zhong; Yang, Wenbo; Bai, Gang; Tian, Wang; Jin, Yongjie.

Pseudomonas sp. TS1138 isolated from soil samples was able to form L-cysteine from DL-2-Amiuo-δ2-Thiazoline-4-Carboxylic Acid (DL-ATC) after cultured 16 h. The optimum carbon and nitrogen sources of strain growth and enzyme formation are glucose and urea. This enzyme was induced by DL-ATC. The product was identified to be L-Cysteine based on thin layer chromatog., optical rotation and HPLC studies.

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