Capsaicin is the main composition of capsaicinoids. 
Chemical name: trans-8-Methyl-N-vanillyl-6-nonenamide
English name: Capsaicin
Molecular weight: 305.4
Molecular formula: C₁₈H₂₇NO₃
CAS No.: 404-86-4
Molecule structure:  
Specification:
Capsaicin: ≥97% (HPLC)
Appearance: white needle crystal
Melting point: 65~67℃
Ignition residue: <1.0%
Loss on drying: <1.0%