Clove leaf is sold as leaf. The enquire typical for eugenol sits around 80%. Bud oil has a different yield and more eugenyl acetate. Stem oil is not on this desk.
A purchase order that says “clove oil” will be filled as leaf unless you write the part. Synthetic eugenol on the shoulder, and leaf blended with stem, are the usual receiving failures. Darker is not stronger. No dental claims.
Plant part is still a dash on the product table until a mill sheet names it. The floor is botanical, part, method, marker, GC-MS, SDS — on India distillates.