Words to Describe mercaptan

How mercaptan often is described ("________ mercaptan")

• molecular
• dodecyl
• irritating
• ethyl
• unreacted
• excess
• containing
• phenyl
• common
• primary
• normal
• total
• appropriate
• particular
• octadecyl
• corresponding
• xylyl
• isopropyl
• low
• free
• octyl
• smelling
• methyl
• butyl
• polyfunctional
• tertiary
• happy
• volatile
• amyl
• pure
• propyl