PTP Inhibitor II(2-溴-4′-甲氧基苯乙酮) is a cell-permeable protein tyrosine phosphatase (PTP) inhibitor that covalently binds the catalytic domain of the Src homology region 2 domain-containing phosphatase (SHP-1(ΔSH2)) with Ki value of 128 μM.

Methylmalonate(甲基丙二酸) is a dicarboxylic acid that can be derived from methylmalonyl-coenzyme A (methylmalonyl-CoA).

Thioisonicotinamide(硫代异烟酰胺) is a synthetic intermediate used for pharmaceutical synthesis.

2,4-Diamino-6-hydroxypyrimidine(2,4-二氨基-6-羟基嘧啶) is a specific inhibitor for GTP cyclohydrolase I, the rate-limiting enzyme in de novo pterin synthesis.

Ethidium Bromide(溴化乙锭) is an intercalating agent which resembles a DNA base pair and commonly used as a fluorescent tag (nucleic acid stain) in molecular biology laboratories for techniques such as agarose gel electrophoresis.

4-Chlorosalicylic acid(4-氯水杨酸) was used in sensitive spectrofluorometric determination of terbium in mixed rare earths and  preparation of poly(4-chlorosalicylic acid-formaldehyde) via condensation with formaldehyde.  

2,6-Dihydroxypurine(黄嘌呤) is a purine base found in most body tissues and fluids, certain plants, and some urinary calculi. It is a product on the pathway of purine degradation.

Glucosamine hydrochloride(D(+)-氨基葡萄糖盐酸盐) is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, also presents in the shells of shellfish, animal bones, bone marrow, and fungi. Glucosamine is commonly used as a treatment for osteoarthritis, although its acceptance as a medical therapy varies.