# US 8,772,533 B1 · Organoleptic compound

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- Number: US 8,772,533 B1
- Document ID: US8772533B1
- Status: Granted
- Kind: B1
- Application number: 13/775,393
- Filed: 2013-02-25
- Granted: 2014-07-08
- Earliest claimed: 2013-02-25
- Assignees: International Flavors & Fragrances Inc.
- Applicants: Richard K. Payne; Feng Geng; Gary J. Mertz
- Inventors: Richard K. Payne; Feng Geng; Gary J. Mertz
- Web page: https://patentgrep.com/patent/US8772533B1

## CPC

- C11B 9/0019: {carbocylic acids; Salts or esters thereof}
- C07C 69/56: Crotonic acid esters; Vinyl acetic acid esters
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

The present invention is directed to a novel compound, but-2-enoic acid 1-ethyl-2-methyl-propyl ester, and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

## Claims

### Claim 1

A compound, (E)-but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

### Claim 2

A method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of (E)-but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

### Claim 3 (depends on 2)

The method of claim 2, wherein the fragrance formulation is incorporated into a product selected from the group consisting of a perfume, a cologne, a toilet water, a cosmetic product, a personal care product, a fabric care product, a cleaning product, and an air freshener.

### Claim 4 (depends on 3)

The method of claim 3, wherein the cleaning product is selected from the group consisting of a detergent, a dishwashing composition, a scrubbing compound, and a window cleaner.

### Claim 5 (depends on 2)

The method of claim 2, wherein the olfactory acceptable amount is from about 0.005 to about 50 weight percent of the fragrance formulation.

### Claim 6 (depends on 2)

The method of claim 2, wherein the olfactory acceptable amount is from about 0.1 to about 25 weight percent of the fragrance formulation.

### Claim 7 (depends on 2)

The method of claim 2, wherein the olfactory acceptable amount is from about 0.5 to about 10 weight percent of the fragrance formulation.

### Claim 8

A fragrance formulation containing an olfactory acceptable amount of (E)-but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

### Claim 9 (depends on 1)

A fragrance product containing an olfactory acceptable amount of the compound of claim 1.