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White grape is Vitis vinifera L. (Vitaceae) — the species behind every classical European wine grape and most table grapes. The 'white' designation refers to skin colour: pale green to pale yellow at ripeness, distinct from the deep purple-black of red wine grapes (V. vinifera is the same species; cultivar selection makes the colour). Concord-type bubble-gum grape character belongs to a different species, Vitis labrusca, native to North America.

In perfumery

White grape has no commercial perfumery extract. The fruit's volatile profile is dominated by water-soluble esters and trace thiols that do not survive industrial extraction. Any 'grape' note in fragrance is therefore a reconstruction — and the choice of cultivar-direction shapes the entire accord [A]:

Concord-direction: methyl anthranilate (CAS 134-20-3) dominant — sweet, grape-skin, bubble-gum, the kind of 'grape' Americans recognise from candy.

Muscat-direction: linalool and α-terpineol heavy — rosy-floral, terpenic, the kind of grape that smells of orange blossom and rose.

Sauvignon Blanc-direction: 4-methoxy-2-methyl-2-butanethiol (CAS 94087-83-9) at parts-per-billion [B] — catty, leafy, faintly sulphurous, the kind of grape that smells of black-currant bud and grapefruit. Same fruit, three completely different aromatic registers.

Around the chosen cultivar signature, perfumers build β-damascenone for floral-fruity depth (the compound responsible for the cooked / aged note of fortified wines and pressed grapes), small ester palettes, and trace ionones for violet-rounding.

Grape seed oil

Grape seed oil (CAS 8024-22-4) — the cosmetic carrier oil pressed from grape pips — is nearly odourless and is not a fragrance ingredient. It is used in skincare for its high linoleic acid and vitamin E content. The fragrance accord and the cosmetic oil are different products from different parts of the same plant.

Sources & Notes

[A] PubChem CID 8635 — methyl anthranilate, CAS 134-20-3. The Concord-grape signature. Also occurs naturally in mandarin and orange-blossom absolute. pubchem.ncbi.nlm.nih.gov/compound/8635.

[B] PubChem CID 526195 — 4-methoxy-2-methyl-2-butanethiol (the 'cat ketone' / Sauvignon Blanc thiol), CAS 94087-83-9. Same compound defines black currant buds. pubchem.ncbi.nlm.nih.gov/compound/526195.