{"product_id":"indole","title":"INDOL CRYST. – animalic, floral and narcotic note with hints of night jasmine, leather and musk","description":"\u003cp\u003eAn extremely diffuse and powerful aroma, which at high concentrations can be almost repulsive and suffocating, but at concentrations below 0.10% or in compositions, it displays powerful floral notes and a pleasant radiance. Good persistence, despite its volatility at room temperature.\u003cbr\u003e\n\u003cbr\u003e\n Concentrations below 0.2 parts per million have a rather pleasant odor, but the effect is highly dependent on the presence of other flavorings and their olfactory nature.\u003cbr\u003e\n\u003cbr\u003e \nIt is widely used as a flavoring for jasmine, lilac, neroli, gardenia, and many other heavy or exotic floral compositions. The indole concentration in the jasmine base can reach several percent, while the delicate components of lily of the valley do not allow for such high concentrations, generally between 0.1% and 0.4%. A small amount of indole can be used to create a \"lifting effect,\" without adding the pungent harshness that is typical of large amounts of this substance.\u003cbr\u003e\n\u003cbr\u003e\n Due to its chemical nature, indole can cause some problems in perfumery when combined with aldehydes, etc. In some cases, the condensation process leads to the formation of a new product, changing color and viscosity, while in other cases the change in odor and color is so noticeable that it can be undesirable.\u003cbr\u003e\n\u003cbr\u003e \nPerfumers are well aware of indole's sensitivity to daylight, and concerns about adding indole to fragrances intended for white soap have been debated for decades. Indole manufacturers and some perfumers seem to agree that, at least largely, the problem is related to residual impurities in indole, not indole itself. It's also undeniable that today's soap is much better than that produced 10 or 20 years ago, and multi-layered paper and aluminum foil packaging has been an important step toward safer integration of fragrances into soaps, allowing the use of many materials previously avoided in soapmaking.\u003cbr\u003e\n\u003cbr\u003e \nIndole's ability to discolor aldehydes or turn them colorless in their presence is sometimes quite impressive. Because indole is often supplied in plastic-lined cardboard containers (in the presence of iron, indole discolors), it can leach into the container, and its vapors can spread far, damaging other materials. Aldehydes and ketones, especially crystalline ones, can also discolor when stored at a considerable distance from their source. Gelliotropin and hydroxyphenylbutanone are typical examples of sensitive aldehydes and ketones.\u003cbr\u003e\n\u003cbr\u003e \nHowever, with proper packaging and careful handling, many of these problems can be managed. A perfumer should know that, at the beginning of formula creation, solid indole should not be added to powdered gheliotropin. It is wiser to set aside the indole and add it when the composition is ready or nearly ready, that is, at the point of greatest dilution of the components. In these cases, chemistry knowledge is invaluable, as many of these \"aldehydes\" don't even have a name or a program that indicates they are aldehydes.\u003cbr\u003e\n\u003cbr\u003e \nIn perfumery laboratories, indole is generally used only as a 10% solution in diethyl phthalate or another safe solvent. The presence of indole crystals, even in well-sealed and clean glass jars, poses a risk to the purity of the perfumery laboratory's odor. Furthermore, the dispersion of a few indole crystals can alter the perfumery laboratory's odor for days or weeks if not properly removed.\u003cbr\u003e\n\u003cbr\u003e\n Indole is used in food flavoring compositions at significantly lower concentrations than in perfumery.\u003cbr\u003e\n\u003cbr\u003e \nIt is added to imitate chocolate, raspberry, strawberry, bitter orange, coffee, walnut, cheese, violet, grapefruit, etc., as well as in fruity complexes. The concentration in the finished product ranges from 0.02% to 0.50 parts per million, so the issue of flavoring color change is not significant, since the concentration is so low that dilution protects against dangerous chemical contact.\u003cbr\u003e\n\u003cbr\u003e \nThe long history of indole's use in our industry has led many of us to become overly familiar with this substance and consider it simply another aromatic chemical. Its discovery in jasmine flowers (along with benzyl acetate) created a tradition of its use in floral arrangements. It is used in most floral creations. Indole is one of the first heterocyclic materials made available to our industry, and therefore belongs to the family of powerful aromatic chemicals that includes the pyrasine subclass, responsible for the revolution in the flavor industry over the past twenty years. Indole is often used in conjunction with benzyl acetate, but for every kilogram of benzyl acetate used in the flavor industry, only about 5 grams of indole is used.\u003cbr\u003e\n\u003cbr\u003e \nThe best indicator of high-quality indole are pure white crystals with a melting point above 52°C and a very low content of heavy metals, especially iron.\u003cbr\u003e\n\u003cbr\u003e\n At very low concentrations, from 200 ppm to about 0.01%, indole exhibits a bright, radiant, and powerful floral effect reminiscent of jasmine and tuberose. However, when indole concentrations reach 1% or more, especially in its pure state, an aggressive, repulsive, and suffocating impression of a fetid, decaying substance is perceived. In the 0.01-1% range, indole is sometimes used in specialty base compositions, such as jasmine perfumes, but even then, levels in final formulas typically do not exceed 1%.\u003c\/p\u003e","brand":"La Profumiera di Venezia by Irina Vaganova","offers":[{"title":"5 g","offer_id":51139748397383,"sku":"INDOL-5g","price":6.95,"currency_code":"EUR","in_stock":true},{"title":"10 g","offer_id":52667634450759,"sku":"indol-10g","price":7.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/9397\/5111\/files\/IMG_8553.jpg?v=1740595383","url":"https:\/\/store.profumieradivenezia.it\/en\/products\/indole","provider":"La Profumiera di Venezia by Irina Vaganova","version":"1.0","type":"link"}