Straight-chain alkanes are sometimes indicated by the prefix "n-" or "n-"(for "normal") where a non-linear isomer exists.
stɹˈeɪttʃˈeɪn ˈælkeɪnz ɑːɹ sˈʌmtaɪmz ˈɪndᵻkˌeɪɾᵻd baɪ ðə pɹˈiːfɪks "ˈɛn" ɔːɹ "ˈɛn"fɔːɹ "nˈoːɹməl"wˌɛɹ ɐ nˈɑːnlˈɪnɪɹ ˈaɪsəmɚɹ ɛɡzˈɪsts.