The vibrant, slightly bitter character of freshly zested grapefruit peel is the defining feature of this powerful aromatic. It possesses a remarkable diffusion, introducing a sparkling and enduring citrus top note. Beyond the initial burst, subtle green and woody facets emerge, lending a sophisticated, dry structure to its profile. A clean, almost soapy quality is balanced by a delicate hint of violet, adding a layer of complexity that elevates it beyond a simple citrus note. This unique olfactive signature makes Methyl Pamplemousse an indispensable tool for achieving a realistic and juicy citrus effect that is both bright and persistent.
In application, its true versatility shines as a key component in many modern colognes and fragrances. This acetal, known for its excellent stability, imparts a significant and lasting fruity freshness, seamlessly integrating into citrus, herbal, and fresh Fougère structures to add a natural juiciness. When paired with vetiver, it acts as an exceptional booster, amplifying the root's inherent grapefruit-like facets and lending a bright, lively dimension to the accord. Typically used from traces up to 2%, Grapefruit acetal can lift an entire composition, lending its distinctive sparkle and sophisticated bitterness from the top note well into the heart of a fragrance.
| Alt Name | Grapefruit acetal |
|---|---|
| Category | Aromatic Compound |
| IUPAC Name | 6,6-dimethoxy-2,5,5-trimethylhex-2-ene |
| CAS Number | 67674-46-8 |
| Molecular Weight | 186.29 g/mol |
| Canonical SMILES | CC(=CCC(C)(C)C(OC)OC)C |
| Odor Family | Citrus |
|---|---|
| Odor Strength | 1 2 3 4 5 |
| Odor Description | Citrus, Fresh, Grapefruit Peel, Green, Soapy, Violet, Woody |
| Usage Level | 10% in the fragrance concentrate |
| Substantivity | 2 hours at 100% |
| Appearance | Colorless to pale yellow clear liquid (est) |
|---|---|
| Specific Gravity | 0.865 to 0.885 @ 25 °C. |
| Pounds per Gallon | 7.198 to 7.364 |
| Refractive Index | 1.43 to 1.45 @ 20 °C. |
| Vapor Pressure | 0.214 mmHg @ 25 °C. (est) |
| Vapor Density | 6.5 ( Air = 1 ) |
| Boiling Point | 214 to 215 °C. @ 760 mm Hg |
| Flash Point | 181 °F. TCC ( 82.78 °C. ) |
| XLogP | 3.2 |
| Shelf Life | 12 months if stored properly |
| Storage | Store in cool, dry place in tightly sealed containers, protected from heat and light. |
| Category | Fragrance agents |
|---|
| Pictograms | |
|---|---|
| Hazard Statement | H227 - Combustible liquid H313 - May be harmful in contact with skin H315 - Causes skin irritation H319 - Causes serious eye irritation H320 - Causes eye irritation H402 - Harmful to aquatic life H412 - Harmful to aquatic life with long-lasting effects |
| Precautionary Statement | P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P264 - Wash … thoroughly after handling P273 - Avoid release to the environment P280 - Wear protective gloves/protective clothing/eye protection/face protection P302 + P352 - IF ON SKIN: Wash with plenty of water/… P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing P312 - Call a POISON CENTER/ doctor/…/if you feel unwell P332 + P313 - If skin irritation occurs: Get medical advice/attention P337 + P313 - If eye irritation persists get medical advice/attention P362 - Take off contaminated clothing P370 + P378 - In case of fire: Use … to extinguish P403 + P235 - Store in a well ventilated place. Keep cool P501 - Dispose of contents/container in accordance with local/regional/national/international regulations. |
| R-phrases | R36/38 - Irritating to eyes and skin |
| S-phrases | S02 - Keep out of the reach of children S24/25 - Avoid contact with skin and eyes S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice S36 - Wear suitable protective clothing |
| Europe Standard Hazard | Xi - Irritant |