r-pyrone-2,6-dicarboxylic acid

3-hydroxybutyric acid is involved in the synthesis and degradation of ketone bodies. Like the other ketone bodies (acetoacetate and acetone), levels of beta-hydroxybutyrate are raised in the blood and urine in ketosis. Beta-hydroxybutyrate is a typical pa

2,6-Dimethoxybenzoic acid is an o-methoxybenzoic acid and its derivatives that inhibit fungi and bacteria.

Trans-2-butene-1,4-dicarboxylic acid (3-Hexenedioic Acid) is a normal human unsaturated dicarboxylic acid metabolite with increased excretion in patients with Dicarboxylic aciduria caused by fatty acid metabolism disorders The urinary excretion of Trans-2-butene-1,4-dicarboxylic acid is increased in conditions of augmented mobilization of fatty acids or inhibited fatty acid oxidation.

(R)-5-Oxopyrrolidine-2-carboxylic acid (D-Pyroglutamic acid) is a cyclic derivative of glutamic acid, physiologically present in mammalian tissues. It has been shown that PCA releases GABA from the cerebral cortex and displays anti-anxiety effects in a simple approach-avoidance conflict situation in the rat. In clinical pharmacology experiments, PCA significantly shortens the plasma half-life of ethanol during acute intoxication.

R-30-Hydroxygambogic acid, a polyprenylated xanthone epimer isolated from the gamboge of Garcinia hanburyi, exhibits cytotoxicity against human leukemia K562 cell lines, with IC50 values of 2.89 μM for the resistant strain (K562/R) and 1.27 μM for the sensitive strain (K562/S). This compound is utilized in cancer research [1].

(R)-pyrrolidine-2-carboxylic acid (D-Proline) is an isomer of the naturally occurring amino acid, L-Proline. D-amino acids have been found in relatively high abundance in human plasma and saliva. These amino acids may be of bacterial origin, but there is also evidence that they are endogenously produced through amino acid racemase activity.

6-Hydroxy-2,6-dimethyl-2,7-octadienoic acid is a natural product from Hippophae rhamnoides.

Diaminopimelic acid or DAPA is a lysine-like amino acid derivative that is a key component of the bacterial cell wall. DAPA is incorporated or integrated into peptidoglycan of gram negative bacteria and is the attachment point for Braun's lipoprotein (BLP or Murein Lipoprotein). BLP is found in gram-negative cell walls and is one of the most abundant membrane proteins. BLP is bound at its C-terminal end (a lysine) by a covalent bond to the peptidoglycan layer (specifically to diaminopimelic acid molecules) and is embedded in the outer membrane by its hydrophobic head (a cysteine with lipids attached). BLP tightly links the two layers and provides structural integrity to the bacterial outer membrane. Diaminopimelic acid can be found in human urine or feces due to the lysis or enzymatic breakdown of gram negative gut microbes.

2,6-Dihydroxybenzoic acid, a secondary metabolite derived from salicylic acid, undergoes hydrolyzation by liver enzymes as part of phase I metabolism.

Ganoderic acid R, exhibiting notable anticancer properties, effectively hampers tumor growth through apoptosis induction in both multidrug resistance (MDR) tumor cell line (KB-A-1/Dox) and sensitive tumor cell line (KB-A-1), demonstrating significant cytotoxicity.

(R)-3-Hydroxybutanoic acid sodium is a natural product for research related to life sciences and the catalog number is T67002.

(R)-(-)-Gossypol acetic acid (AT101 acetate) , the R-(-) enantiomer of Gossypol acetic acid, binds with Bcl-2, Bcl-xL and Mcl-1 with Ki of 0.32 μM, 0.48 μM and 0.18 μM; does not inhibit BIR3 domain and BID. Phase 2.

(R)-Leucic acid is an metabolite of amino acid.

Chelidonic acid (Jervaic acid) is a component of Chelidonium majus L., used as a mild analgesic, an antimicrobial, an acentral nervous system sedative. Chelidonic acid (Jervaic acid) also shows anti-inflammatory activity.