The present invention relates to tetrahydropyranyl lower akyl esters and specifically to tetrahydropyranyl acetates, a method for preparation thereof using ketene and use thereof as fragrances and aroma substances.

A perfume composition providing differentiated odour depending on the assessment conditions is provided. The perfume composition includes a) less than 20% by weight of perfumery ingredients having an equilibrium headspace concentration (HS) between 151 and 900 microgram/l at 25° C., b) at least 35% by weight of perfumery ingredients having a HS higher than 900 microgram/l at 25° C. and b) 25% by weight of perfumery ingredients having a HS lower than or equal to 150 microgram/l at 25° C. The perfume composition reduces consumer perfume habituation to said perfume product.

Disclosed are fragrance accords each containing (i) at least 7 wt % of one or more Class 1 fragrance ingredients, (ii) 5 to 85 wt % of one or more Class 2 fragrance ingredients, and (iii) 0 to 80 wt % of one or more Class 3 fragrance ingredients. The Classes 1, 2, and 3 fragrance ingredients are defined by experimental velocity. Also disclosed are delivery systems and consumer products containing such a fragrance accord.

This disclosure relates to methods and compositions for determining the alleles present at polymorphic simple sequence repeat (SSR) sites in the Cannabis genome to produce a genetic profile for Cannabis plants.

A lactone compound is represented by general formula (A), and an ether compound is represented by general formula (B). In formula (A), R is a hydrogen atom or R1. When R is a hydrogen atom, R is R1, the carbon bond (1) is a single bond or a double bond, and the carbon bond (2) is a single bond. When R is R1, R is a hydrogen atom or R1, both the carbon bonds (1) and (2) are a single bond, or one of them is a double bond and the other is a single bond. In formula (B), R is R1. R1 represents a specific alkyl group, a specific alkenyl group, a specific alkynyl group, or an aryl group. In formulas (A) and (B), n is 0 or 1.

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A top-heavy composition includes a fragrance component present in an amount of from about 0.04 wt % to about 30 wt % and at least one substantially non-odorous fragrance modulator in an amount of about 0.1 wt % to about 20 wt %, each relative to the total weight of the composition. The fragrance component includes at least one low volatile fragrance material present in an amount of from about 1 wt % to out 30 wt %, at least one moderate volatile fragrance material present in an amount of from about 25 wt % to about 65 wt % and at least one high volatile fragrance present in an amount of greater than about 30 wt %, each relative to the total weight of the fragrance component. Modulators used include PPG-20 methyl glucose ether, isocetyl alcohol, sucrose laurate, neopentyl glycol diethylhexanoate and PPG-10 cetyl ether. The composition may be used in a perfuming consumer product or article such as fabric care, air care, home care and beauty care products.

The present invention relates to the use of 2-furyl- and 2-thienyl-substituted di- and tetrahydropyrans of the formula (I) wherein the variables are as defined in the claims and the description, as aroma chemicals; to aroma chemical compositions comprising at least one 2-furyl- or 2-thienyl-substituted di- or tetrahydropyran and to a method for preparing an aroma chemical composition. The present invention further relates to specific 2-furyl- and 2-thienyl-substituted di- and tetrahydropyrans and to a method for their preparation.

##STR00001##

Disclosed are fragrance accords each containing (i) at least 7 wt % of one or more Class 1 fragrance ingredients, (ii) 5 to 85 wt % of one or more Class 2 fragrance ingredients, and (iii) 0 to 80 wt % of one or more Class 3 fragrance ingredients. The Classes 1, 2, and 3 fragrance ingredients are defined by experimental velocity. Also disclosed are delivery systems and consumer products containing such a fragrance accord.

The use as fragrance ingredient of 4methylene2(2methylprop1enyl)tetrahydropyran.

Described herein are essential oils, extracts, apparatus and methods for the extraction of the essential oils and extracts from plant biomass using microwaves.