5-methyl-2-propan-2-ylhex-2-enal (FEMA-3406) is a fresh citrus–aldehydic material with zesty lemon/orange‑peel sparkle and a gentle green rind nuance. It lifts top notes and tidies citrus, herbal and clean floral accords without turning harsh when dosed carefully.

Fragrance Family: Citrus Aldehydic, Fresh Green

Top Notes: lemon/orange peel, zesty aldehydic brightness, green rind

Heart Notes: clean herbal, light floral‑soapy nuance

Base Notes: soft waxy aldehydic body

Applications (typical ranges):
• Fine fragrance: 0.02–0.25%
• Body care: 0.01–0.10%
• Home care/air care: 0.02–0.20%
• Candles: 0.02–0.20%

IFRA: Refer to the latest IFRA Standards for category‑specific limits.

Allergen: No inherent IFRA allergens; finished‑product declaration depends on full formula.

Storage: Tightly closed, cool and dry; protect from light and air.

Shelf Life: 24 months (unopened, stored as recommended).

CAS Number: 35158-25-9