The corresponding ternary systems with 2,2′-bipyridine are studied in aqueous solution by potentiometry and in DMSO solutions by 1H-NMR. All the amino acids behave as simple carboxylate ligands at acid pH, while, around neutrality, N-p-tolylsulfonylglycine (tsglyH2), N-p-tolylsulfonyl-β-...
Acetohexamide抑制剂COA-M5382
Full and unambiguous assignment of all 1H- and 13C-NMR resonances of the isomers due to restricted C-N amide bond rotation of N-formyl-o-toluidine and N,N-bis-formyl-o-tolidine in DMSO-d6 is reported. The cis-isomer predominates in the equilibrium mixture of both compounds as 1D-NOE ...
1H (600 MHz) and 13C (125 MHz) NMR spectra were obtained in CD3OD for 6 to 9 and in DMSO-d6 for amidepsines 10 and 11. The assignment of 13C NMR chemical shifts of 6 to 11 were facilitated by HMQC and HMBC experiments. The Journal of Antibiotics New amidepsines produced under ...
Dinuclear platinum complex synthesis using the bispyridine ligands is done in hot water using transplatin. The most informative of the chemical characterization techniques to determine the structure and gross purity of both the bispyridine ligands and the final platinum complexes is (1)H NMR with ...
Soluble in DMSO (up to 30 mg/ml). Physical Description: White solid Storage: RT 公司简介 上海惠诚生物科技有限公司,成立于2010年,企业宗旨“惠质产品,挚诚服务”。惠诚生物自成立以来,一直致力于为客户提供一站式科学服务,产品覆盖设计开发全过程,提供实验室设计、实验室建设、仪器设备、耗材、试剂、技术服...
The persistence length of poly(terephthaloyl p -amino benzhydrazide) (X-500) in dimethyl sulfoxide (DMSO) has been determined from intrinsic viscosities measured for several whole-polymer samples. An approximate correction is applied for... E Bianchi,A Ciferri,J Preston,... - 《Journal of Pol...
were amorphous and therefore this factor in addition to the introduction of bulky anthraquinone group led to good solubility of the polymers in most common organic solvents especially in -methyl-2-pyrrolidone (NMP), ,-dimethylacetamide (DMAc), ,-dimethylformamide (DMF), and dimethylsulfoxide (DMSO)...
Compound 3 exists predominantly in the E conformation of the thioamide group in freshly prepared DMSO solution but is converted into the Z form, predicted by molecular mechanics to be more stable, on standing for 24 h. The coalescence temperature in DMSO is 110 degrees C by 1H-NMR. The ...
Table 1. 1H (400 MHz) and 13C (100 MHz) NMR data of 1 and 2 in DMSO-d6. A 4-quinazolinone moiety (rings A and B) was assigned by 1H–1H COSY correlations (Figure S5) between H-3 and H-4, H-4 and H-5, H-5 and H-6, and the HMBC correlations (Figure S6) from ar...