propionic acid वाक्य
उदाहरण वाक्य
मोबाइल
- From propionic acid and thionyl chloride propionyl chloride can be obtained, which reacts with ethanolamine in the presence of an acid scavenger ( for example pyridine ) to N-propionyl-2-aminoethanol.
- When heated, aspergillomarasmine A decomposes between 225?and 236 �C . Hydrolysis produces L-aspartic acid and racemic 2, 3-diamino-propionic acid . [ ? ] 20?D at pH 7 is-48?
- For example N-( 2-hydroxyethyl ) propionamide is first formed from propionic acid and ethanolamine in 74 % yield which can be dehydrated to give 2-ethyl-2-oxazoline in about 75 % yield.
- It was derived from propionic acid by the research arm of Boots UK during the 1960s, a period which also included the discovery of ibuprofen, indometacin, diclofenac, naproxen, ketoprofen, and sulindac.
- Members of the genus " Propionibacterium " are widely used in the production of vitamin B 12, tetrapyrrole compounds, and propionic acid, as well as in the probiotics and cheese industries.
- The major alternative route by which the propionyl-CoA is metabolized is based on its conversion to acrylyl-CoA . After that, it is converted to 3-hydroxy propionic acid and finally to malonic semi-aldehyde.
- When ethyl propionate with an oxygen-18-labeled ethoxy group is treated with sodium hydroxide ( NaOH ), the oxygen-18 label is completely absent from propionic acid and is found exclusively in the ethanol.
- Propionic acid is produced biologically as its coenzyme A ester, propionyl-CoA, from the sweat glands of humans, and their activity is partially responsible for the odor of both Swiss cheese and sweat.
- The similarity in chemical structures between propionic acid and acetic acid, which is a colorless liquid that would share many physical characteristics such as odor, may account for foot odors identified as being vinegar-like.
- At this stage the number of isomers in the mixture was reduced by HPLC to just two with the racemic propionic acid ester group at C13 ( ring C ) remaining in "'65 " '.
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