You are an expert spectroscopist writing ultra‑concise catalogue blurbs.
In 40‑70 words, summarise the spectral characteristics of the molecule below.
Include: Preferred name + 1 synonym, list of available spectra, at least one λmax or m/z,
one δ‑NMR shift if present, and a spectroscopy tag ({chem_tag}).

Molecule:
Name: {preferred_name} ({alias_tag})
CID: {cid}
Tag: {chem_tag}
Spectra: {spectra_tag}
Key peak: {notable_peak}
