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Levothyroxine impurity 12 is an impurity of Levothyroxine.

(+)-Laudanidine ((S)-Tritopin) is a benzyltetrahydroisoquinoline alkaloid found in Stephania species.

4-Hydroxymethylambrisentan-d₅ is deuterium-labeled 4-Hydroxymethylambrisentan (HY-W701834).

3-Chloro-2-hydroxypropyl-1,1,2,3,3-d₅ oleate (1-Oleoyl-3-chloropropanediol-d₅) is deuterium labeled 3-Chloro-2-hydroxypropyl-1,1,2,3,3 oleate.

3-Chloro-2-(stearoyloxy)propyl-1,1,2,3,3-d₅ oleate (1-Oleoyl-2-Stearoyl-3-chloropropanediol-d₅) is deuterium labeled 3-Chloro-2-(stearoyloxy)propyl-1,1,2,3,3 oleate.

Haloperidol impurity 17 is an impurity of Haloperidol.

Vonedrine-d₃ (Phenpromethamine-d₃ ) hydrochloride is the deuterium labeled Vonedrine hydrochloride.

Levofloxacin impurity 12 is an impurity of Levofloxacin.

6-(5-((3aS,4S,6aR)-1-(Bis(4-methoxyphenyl)(phenyl)methyl)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)hexyl (2-cyanoethyl) diisopropylphosphoramidite is a phosphoramidite that can be used in the synthesis of oligonucleotides.

3-Methyl-4-nitrophenol-d₃ is the deuterium labeled 3-Methyl-4-nitrophenol (HY-W042337). 3-Methyl-4-nitrophenol, an environmental contaminant, is a well-known constituent of diesel exhaust particles and degradation products of insecticide fenitrothion. 3-Methyl-4-nitrophenol can induce nasal epithelial cell apoptosis and increase the permeability of the nasal epithelial barrier. 3-Methyl-4-nitrophenol is also toxic to the female reproductive system.

3-(1-Nitrosopyrrolidin-2-yl)pyridine-¹³C₆ is the ¹³C-labeled 3-(1-Nitrosopyrrolidin-2-yl)pyridine (HY-W189682). 3-(1-Nitrosopyrrolidin-2-yl)pyridine is a major tobacco-specific nitrosamine.

(((9H-Fluoren-9-yl)methoxy)carbonyl)-L-aspartic acid-¹⁵N is the ¹⁵N-labeled (((9H-Fluoren-9-yl)methoxy)carbonyl)-L-aspartic acid (HY-W013182). (((9H-Fluoren-9-yl)methoxy)carbonyl)-L-aspartic acid is an aspartic acid derivative.

(E)-But-2-enal-¹³C is the ¹³C-labeled (E)-But-2-enal.

Boc-L-Valine-¹⁵N is the ¹⁵N-labeled Boc-L-Valine (HY-W002300). Boc-L-Valine is a valine derivative.

4-Hydroxymephenytoin (Standard) is the analytical standard of 4-Hydroxymephenytoin. This product is intended for research and analytical applications. 4-Hydroxymephenytoin is a metabolism of an antiepileptic agent mephenytoin, which is used as a CYP2C19 substrate.

Fmoc-Gln(Trt)-OH-¹³C₅,¹⁵N₂ is the ¹³C-labeled and ¹⁵N-labeled Fmoc-Gln(Trt)-OH (HY-W013081). Fmoc-Gln(Trt)-OH is a glutamine derivative containing amine protecting group Fmoc. Fmoc-Gln(Trt)-OH can be used in solid-phase peptide synthesis.

BRD4 ligand 10 is a PROTAC target protein ligand. BRD4 ligand 10 can be used to synthesize PROTAC BRD4 Degrader-49 (HY-185854).

Leucic acid-¹³C (α-Hydroxyisocaproic acid-¹³C) is the ¹³C-labeled Leucic acid (HY-30216A). Leucic acid is an amino acid metabolite.

RET-IN-12 (compound 2) is a RET inhibitor, with IC₅₀ values of 0.3 nM and 1 nM for RET(WT) and RET(V804M), respectively.

Fmoc-Abg(N3)-OH is a click chemistry reagent containing an azide group. Fmoc-Abg(N3)-OH has the potential to synthesize peptide nucleic acids (PNA) and peptoids. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.