Other potential carboxylic acids (10–5M), such as malic acid, citric acid, acetic acid, cinnamic acid, tartaric acid, succinic acid, fumaric acid, oxalic acid and malonic acid failed to alter the chromo-fluorogenic properties ofL. ProbeLcan be employed to detect maleic acid down to 2.74×10...
: a crystalline dicarboxylic acid C4H4O4 that is isomeric with fumaric acid and is used especially in organic synthesis Word History Etymology French acide maléique, alteration of acide malique malic acid; from its formation by dehydration of malic acid First Known Use 1838, in the meaning ...
fumaric acid maleic acid cis-butenedioic acidNCIOpen2_003792NCIOpen2_004870NCI60_002239110-16-7110-17-8 [Structure][ Properties Computed from Structure] Molecular Weight 116.07216 [g/mol] Molecular Formula C4H4O4 XLogP -0.4 H-Bond Donor 2 H-Bond Acceptor 4 Rotatable Bond Count 2 Exact Mass ...
The present invention relates to new maleic acid or fumaric acid derivatives and to a process for preparing the same. It has been found that functional derivatives of propiolic acid are capable of undergoing an addition reaction with hydrogen cyanide. This addition reaction is preferred to......
Maleic acid, unlike malic acid, isn't derived from fruits. 12 Malic Acid Malic acid is a naturally occurring organic compound. Apples contain malic acid, giving them their tart flavor. 11 Maleic Acid It can be converted into fumaric acid through isomerization. The isomerization of maleic acid ...
化学式为(CHCOOH)2为两种异构体的酸(A)和(B)。其中一种酸称为马来酸(maleic acid),另一种酸称为富马酸(fumaric acid)。(1) 试画出(CHCOOH)2的两种异构体的结构式,指出它们属于何种类型的异构体。(2) 富马酸的pKa1 = 3.02,pKa2 = 4.38,而马来酸的pKa1 = 1.92,pKa2 = 6.23,试指出上述两种结构...
Synthesis and rheological study of some maleic acid and fumaric acid stereoregular polyesters, 3. Synthesis of a series of configurationally pure aliphatic... A series of aliphatic polymaleates was prepared by polycondensation of potassium maleate with 伪,蠅-dibromoalkanes Br(CH2)n Br (n = 1.....
Effect of molecular structure of maleic anhydride, fumaric acid – Isopentenyl polyoxyethylene ether based polycarboxylate superplasticizer on its properties in ... S Sha,Y Zhang,Y Ma,... - 《Construction & Building Materials》 被引量: 0发表: 2021年 The synthesis of a novel polymer‐type antista...
The conversion from fumaric acid to maleic acid can be done by hydrolytic conversion. The fumarase may catalyze this reaction with the help of a liquid membrane. Answer and Explanation:1 Usually, fumaric and malic acids are the geometrical isomers, which means the molecular f...
英文: Fumaric Acid Production by Rhizopus sp.中文: 利用根霉菌生产富马酸 英文: Research Progress on Synthesizing Aspartic Acid by Fumaric Acid Ammonification Biotransformation中文: 生物催化富马酸加氨合成天门冬氨酸的研究进展 英文: Fumaric acid (trans-butenedioic acid) An unsaturated dicarboxylic acid, ...