Extract of Heliotrope (Extrait de Héliotrope).
| Heliotrope pomade | 6 lb. |
| Alcohol | 5 qts. |
This has thus far been manufactured only by French perfumers at very high prices; the great majority of the so-called extracts of heliotrope are compounded from:
| Extract of rose, from pomade | 2 qts. |
| Extract of orange flowers, from pomade | 14 oz. |
| Tincture of ambergris | 7 oz. |
| Tincture of vanilla | 4 qts. |
| Oil of bitter almond | 75 grains. |
This is used as a perfume as such.
More recently, piperonal, under the name heliotropin, is used for making this extract—
| Heliotropin | ¼ oz. |
| Alcohol | 1 Pint. |
It is necessary to blend this with various other aromatics in order to cover the pronounced odor. A little cumarin is usually of great help. But is it impossible, as yet, to give reliable proportions which would suit all cases.