The 600 MHz HNMR spectrum of testosterone provides an illustrative example, why NMR nomenclature is essential for spectral interpretation and qNMR applications. The resonances of H-6a=α and H-2a=α around 2.3 ppm give rise to a pattern of 19 peaks, with additional two shoulders, that result from 32 lines. This pattern corresponds to two dddd-type multiplets that reflect the J-couplings of H-6a with H-6b, H-7a, H-7b, and H-4, and H-2a with H-2b, H-1a, H-1b, and H-4. Ignoring such specific information inevitably leads to misleading and/or erroneous assignments and quantitative evaluations when doing qNMR. The raw NMR data (FID) for this case study was kindly shared by the authors of at DOI:10.7910/DVN/MOCHRD.