The word "valerene" is a chemical compound that belongs to the family of sesquiterpenes. Its spelling can be explained using the International Phonetic Alphabet (IPA) transcription. The first syllable "va-" is pronounced as /veɪ/, followed by the second syllable "-le-", which is pronounced as /lə/. The last syllable "-rene" is pronounced as /ri:n/. In summary, the IPA transcription for "valerene" is /veɪləri:n/ and is pronounced as "vay-luh-reen."
Amylene.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.