(C1-C5)alkyl or —CF3; Rb represents a group: —(C1-C5)alkyl or —CF3; Rc represents a group: —(C1-C5)alkyl or —CF3; and Rd represents a group: —(C1-C5)alkyl or —CF3; in the state of a base or acid or acid salts or base salts or in the form of hydrate or of ...
Y′ can be a polymerized monomer unit of polyacrylate, such as poly(acrylic acid) or poly(methacrylic acid) or poly(hydroxypropyl methacrylate), a polyacrylamide, a saturated polyolefin, a polyamide, such as poly(acrylamide) or poly(methacrylamide), a peptide, a polypeptide, an unsaturated ...
我的分析是O在O,S,N中电负性最大,所以酸性比较是CH3CH2OH〉CH3CH2NH2〉CH3CH2S.然而酸性大小相反在conjugate base,所以CH3CH2O-〉CH3CH2S-.那么酸性大小排列是CH3CH2OH〉CH3CH2NH2〉CH3CH2S〉CH3CH2O-〉CH3CH2S-.结论,碱性倒过来,所以CH3CH2S-最大.我哪里说错了?求具体分析.我不太明白,CH3CH2NH2中N不是...
2-叠氮乙基-4-对甲苯磺酸酯 叠氮基癸酸,CAS:186788-32-9,10-Azido-decanoic acid 叠氮基癸酸偶联溶菌酶 10-Azido-decanoic acid@lysozyme
The MWCNT-LVX data were compared with the standard spectrum of LVX and MWCNT-NH2carrier, and their changes were noticed. Briefly, the bands of LVX were reported as follows: 3268 cm−1(OH), 2959–2803 cm−1(CH2, CH3), 1722 cm−1(C=O acid, stretching vibration of the COOH), 162...
The structure of the S. pneumoniae polysaccharide of serotype 8 was described by Jones et al. in J. Am. Chem. Soc. 1957, 79, p. 2787. The authors found out by acid hydrolysis that the S. pneumoniae polysaccharide of serotype 8 is a linear having a repeating unit of -β-D-GlcAp-(...
The acids are NH4+, H2NNH3+, CH3NH3+, CH2NH2, OCNH2+, OCHNH3+, H2NCHNH2+, HNCHNH3+, NH3, CH3NH2, CH2NH, OCNH, OCHNH2, and HNCHNH2. Gas-phase acidities were calculated at the G2(MP2) level where experimental values are not available in order to have benchmark values for ...
2. The polyuronide polymer, according to claim 1, comprising a compound selected from the group consisting of a. heptafluorobutyryl alginic acid of the formula b. 6 [3 [2 (perfluorohexyl)2ethoxy]2hydroxypropyl] alginic acid of the formula c. perfluoro trinbutylamine alginate of the formula ...
The N-terminal amino acid sequences of these low-molecular-mass single-chained plant type I RIPs and mushroom type I RIPs, are distinct from those of classical type I and type II RIPs from plants. The biological activities of these low-molecular-mass type I RIPs, which include, alongside ...