naphthol blue

Questions

What does naphthol blue mean?

Dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone.

How to pronounce naphthol blue

1. Open the pronunciation page — Open the Speakur entry for “naphthol blue”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “naphthol blue”.
4. Repeat and practice — Say “naphthol blue” aloud, matching stress and vowels until it feels natural.