Detail of "17013-01-3"

Reference

Protective effect of carboxylic acids, sorbitol and sodium glutamate on heat denaturation of chub mackerel myofibrils

Protective effect of carboxylic acids, sorbitol and sodium glutamate on heat denaturation of chub mackerel myofibrils. Ooizumi, Tooru; Nara, Yasunobu; Arai, Kenichi (Fac. Fish., Hokkaido Univ., Hakodate 041, Japan). Nippon Suisan Gakkaishi, 50(5), 875-82 (Japanese) 1984. CODEN: NSUGAF. ISSN: 0021-5392. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) The protective effect of carboxylic acid and the joint protective effects of various mixts., which included carboxylic acids, sorbitol [50-70-4], and Na glutamate [142-47-2] on the thermal stability of chub mackerel myofibrils were studied by measuring the change in the 1st order rate const. (kD) for inactivation of their Ca-ATPase. Plotting the logarithm of kD against the concn. (0-1.5 M) of carboxylic acid, a single linear relation was obtained. The slope (E) of the graph of log kD vs. molarity of carboxylic acid revealed that the protective effect against the denaturation of myofibrils becomes lower in the order of: Na citrate [68-04-2], Na gluconate [527-07-1], Na malate [304-60-9], Na tartrate [868-18-8], Na maleate [371-47-1], Na fumarate [17013-01-3], Na succinate [150-90-3], Na formate [141-53-7]. The protective effect of each carboxylic acid was thus roughly proportional to the no. of CO2H groups in its structural formula. The decrease in log kD showed that the joint protective effects were nearly additive for all pair combinations selected from among sorbitol, Na glutamate, and carboxylic acids. Consequently, the equation: kD(a+b) = kDb/kD0 was valid in the presence of 2 compds.

Molecular interactions of zinc(II) cyclams toward maleate and fumarate anions

All Rights Reserved. Molecular interactions of zinc(II) cyclams toward maleate and fumarate anions. Kim, Ju Chang; Lough, Alan J.; Park, Hanyoung; Kang, Y. C. ( Department of Chemistry, Pukyong National University, Pusan, Nam-gu 608-737, S. Korea). Inorganic Chemistry Communications, 9(5), 514-517 (English) 2006 Elsevier B.V. CODEN: ICCOFP. ISSN: 1387-7003. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Section cross-reference(s): 75 Two new zinc(II) complexes, {[Zn(L)(maleate)]·H2O}n (1) and [Zn(L)(H2O)2](fumarate)·4H2O (2) (L = cyclam, 1,4,8,11-tetraazacyclotetradecane) were prepd. and structurally characterized by a combination of anal. 920035-26-3 and 17013-01-3 which are cas registry numbers of chemicals are mentioned., spectroscopic, thermogravimetric, and crystallog. methods. The carboxylate groups of the maleate ligand in 1 show a coordination tendency toward zinc(II) cyclams giving a 1-dimensional coordination polymer. However, the carboxylate groups of the isomeric fumarate anion in 2 do not interact with zinc(II) cyclam. The identification of strong interactions between carboxylate groups and zinc(II) ions in 1 may provide better knowledge for the improved design of receptor-targeted zinc(II) cyclams in anti-HIV agents. .