3,5-Dichloro-4-methylbenzoic acid is a poly-halogenated aromatic benzoic acid building block.

Etimicin (sulfate) is a fourth-generation aminoglycoside compound.

Thioctate trometamol is a 1:1 stoichiometric salt of R-α-lipoic acid with tris(hydroxymethyl)aminomethane (tromethamine).

Perfluoropentanoic acid, a short-chain perfluorinated compound, serves as an important indicator of perfluorinated compound pollution in ecosystems.

Timonacic is an active thiol-containing compound.

Potassium tetrakis(pentafluorophenyl)borate is a weakly-coordinating fluorinated borate salt commonly used as a supporting electrolyte or ion-exchange reagent in catalysis and electrochemistry.

Octadecanedioic acid is an aliphatic dibasic acid and also serves as a comonomer unit for biodegradable oligo (ester amide).

Octadecanedioic acid mono-tert-butyl ester is the mono-tert-butyl ester of octadecanedioic acid serving as a long-chain diacid-type peptide-modification building block.

Fmoc-L-Lys[Oct-(otBu)-Glu-(otBu)-AEEA-AEEA]-OH is an Fmoc/tBu-protected lysine–fatty diacid–glutamate–bis-AEEA side-chain conjugate building block.

Ste-Glu-AEEA-AEEA-OSU is an N-hydroxysuccinimide (OSU)-activated ester of an octadecanedioyl–glutamate–bis-AEEA side chain, serving as an activated peptide-modification building block.

Tbuo-ste-glu(AEEA-AEEA-OH)-OtBu is a bis-tert-butyl-ester-protected octadecanedioyl–glutamate–bis-AEEA side-chain coupling building block bearing a free terminal carboxylic acid.

20-(tert-Butoxy)-20-oxoicosanoic acid is a C20 long-chain diacid mono-tert-butyl ester peptide-modification building block.

tBuO-Ara-Glu(AEEA-AEEA-OH)-OtBu is a branched building block containing a C20 diacid-glutamate scaffold with two AEEA linkers, used as a fatty-acid side-chain fragment in solid-phase peptide synthesis.

Tetrahydroxy-1,4-benzoquinone hydrate is the hydrate form of 2,3,5,6-tetrahydroxy-1,4-benzoquinone, a highly hydroxylated para-benzoquinone used as a building block in organic synthesis and as a ligand precursor in coordination chemistry studies.

3,3'-Diaminobenzidine tetrahydrochloride is an aromatic diamine chromogenic substrate that reacts with peroxidase to form an insoluble colored deposit, widely used as a chromogen for immunohistochemistry and Western blot detection.

p-Toluenesulfonic acid (PTSA) monohydrate is a strong organic acid used as an organocatalyst in organic synthesis.