Category Nuances for phosphate_ester:

• relevant,
• acidic,
• nonvolatile,
• base,
• hydrophilic,
• popular,
• corrosive,
• important,
• synthetic,
• major,
• stock,
• functional,
• polar,

Simple Categories for phosphate_ester:

• substrate,
• component,
• solute,
• monomer,
• material,
• fluid,
• fraction,
• chemical,
• intermediate,
• group,
• portion,