2-Methyl-2-Pentenoic Acid FCC N° 444 (Bedoukian®)
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Short profile
A forceful, tart fruit material centred on strawberry preserves, with raspberry and pineapple nuances and a juicy, faintly fatty texture. The supplier's evaluation also identifies cheese-like and sweaty undertones, together with a sharp green-to-herbal accent. Its concentrated smell can be challenging, whereas trace additions contribute a more convincing ripe-fruit impression. The page does not describe a timed opening, heart or dry-down sequence, or establish how its projection changes during blotter evaluation.
Effect in a formula
Introduces an acidic, cooked-fruit dimension into ester-led compositions, counterbalancing confectionery sweetness with a more realistic impression of ripe fruit. Its clearest applications are strawberry, mixed-berry and other fruit accords, including fragrances intended for shampoos and cosmetics. The supplier also identifies cheese accords as an application for its savoury undertone.
Use and dosage
The supplier gives 0.04–0.3% of the fragrance concentrate for adding tart ripeness to strawberry, berry and broader fruit compositions. Trace quantities are described as sufficient to modify sweetness and fruit realism. A separate laboratory note gives 0.01–0.3% in the finished fragrance; this is a different stated basis and should not be treated as a concentrate range. These are formulation recommendations, not IFRA limits.
No confirmed manufacturer use level for this exact product.
Behaviour and performance
- Tenacity
- The page reports 380 hours of blotter substantivity in a data panel attributed to TGSC; test dilution and environmental conditions are not supplied. Elsewhere, the supplier characterises persistence as moderate, so the quantitative figure and the qualitative description should be kept distinct.
Diffusion, tenacity and note impact are not combined into a single performance score.
Dissolving and diluting
- Solvents
- Reported to form clear solutions in both ethanol and dipropylene glycol (DPG). The page does not specify saturation concentrations or provide water-miscibility data.
- Working dilution
- Use a 1% stock for formulation work and a 0.1% dilution for olfactory evaluation, following the supplier's practical guidance. Ethanol and DPG are the listed dilution solvents.
- Appearance
- Liquid, ranging from colourless to a light yellow tint.