The Upstream and Downstream products of 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid

1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid, also known as Quinoline-4-carboxylic acid, is a raw material used in the production of various chemicals and pharmaceuticals.
The upstream and downstream products of this acid can be traced through the chemical industry, highlighting its significance and utility.

Upstream Products
One of the primary upstream products of 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid is 2-Amino-5-quinoxalinesulfonic acid, which is used as a intermediate for the production of certain pharmaceuticals, agrochemicals, and dyes.
Another upstream product is 5-Chloro-2-methoxy-4-toluidide, which is a reagent used in organic synthesis, particularly for the production of dyes and pigments.

Downstream Products
One of the most significant downstream products of 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid is Cimetidine, an anti-ulcer drug that is widely used in the treatment of gastric and duodenal ulcers.
Cimetidine is also used in the production of other pharmaceuticals, such as ranitidine, famotidine, and nizatidine.

Another significant downstream product is Carbidopa, a drug used for the treatment of Parkinson's disease.
Carbidopa is also used as an intermediate in the production of certain dyes, due to its excellent bright yellow color.

Quinoline-3-carboxylic acid, another downstream product of 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid, is an intermediate used in the production of dyes, pigments, and other organic chemicals.

Interestingly, the same raw material can have multiple downstream applications, depending on the specific processing methods and intermediate products used.
For example, 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid can be processed to produce N-Methyl-D-Aspartate, which is used as a reagent in organic synthesis, and can further be converted to other downstream products such as L-glutamate and D-alphamethylbenzylamine.

In conclusion, 1,4-Dihydro-4-oxo-3-quinolinecarboxylic acid is a versatile raw material with a range of upstream and downstream products in the chemical industry.
Its utility in the production of pharmaceuticals, dyes, pigments, and other chemicals makes it a valuable building block in the manufacturing of a variety of chemicals and products.