# US 11,992,010 B2 · Use of 4-(phenylethynyl) benzoic acid

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- Number: US 11,992,010 B2
- Document ID: US11992010B2
- Status: Granted
- Kind: B2
- Application number: 17/951,986
- Filed: 2022-09-23
- Published: 2023-07-27
- Granted: 2024-05-28
- Earliest claimed: 2022-01-24
- Assignees: China Jiliang University
- Applicants: China Jiliang University
- Inventors: Pei Xu; Pingping Fang; Xiaofang Li; Zhuoyi Wang; Ting Sun; Xinyang Wu; Peipei Zhang
- Web page: https://patentgrep.com/patent/US11992010B2

## CPC

- A01N 37/10: Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
- A01P 21/00: Plant growth regulators
- A01N 25/02: containing liquids as carriers, diluents or solvents
- A01P 13/00: Herbicides; Algicides
- Y02A 40/10: in agriculture
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01P: BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

The present disclosure provides the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator. 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390. The optimum concentration of 4-(Phenylethynyl) benzoic acid in the plant growth regulator is in a range of 10 μM to 200 μM. The plant growth regulator further contains a pesticidally acceptable carrier. The present disclosure further provides the use of 4-(Phenylethynyl) benzoic acid in regulating plant growth. In the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator of the present disclosure, 4-(Phenylethynyl) benzoic acid has the ABA-like effects, and is more stable, easily available, cheaper, and environmentally friendly. Therefore, the present disclosure is suitable for large-scale popularization.

## Claims

### Claim 1

A method of inhibiting seed germination, the method comprising:
providing a solution comprising 4-(Phenylethynyl) benzoic acid; and
inhibiting the seed germination using the solution.

### Claim 2 (depends on 1)

The method of claim 1, wherein the 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390, and a structure as follows:

### Claim 3 (depends on 2)

The method of claim 2, wherein a concentration of 4-(Phenylethynyl) benzoic acid in the solution is in a range of 10 μM to 200 μM.

### Claim 4 (depends on 3)

The method of claim 3, wherein the solution further comprises a pesticidally acceptable carrier comprising water, dimethyl sulphoxide (DMSO), at least one buffer, Hoagland nutrient solution, at least one surfactant, or a combination thereof.

### Claim 5

A method of blocking radicle elongation, the method comprising:
providing a solution comprising 4-(Phenylethynyl) benzoic acid; and
blocking the radicle elongation using the solution.

### Claim 6 (depends on 5)

The method of claim 5, wherein the 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390, and a structure as follows:

### Claim 7 (depends on 6)

The method of claim 6, wherein a concentration of the 4-(Phenylethynyl) benzoic acid in the solution is in a range of 10 μM to 200 μM.

### Claim 8 (depends on 7)

The method of claim 7, wherein the solution further comprises a pesticidally acceptable carrier comprising water, dimethyl sulphoxide (DMSO), at least one buffer, Hoagland nutrient solution, at least one surfactant, or a combination thereof.

### Claim 9

A method of promoting stomata closure, the method comprising:
providing a solution comprising 4-(Phenylethynyl) benzoic acid; and
promoting the stomata closure using the solution.

### Claim 10 (depends on 9)

The method of claim 9, wherein the 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390, and a structure as follows:

### Claim 11 (depends on 10)

The method of claim 10, wherein a concentration of 4-(Phenylethynyl) benzoic acid in the solution is in a range of 10 μM to 200 μM.

### Claim 12 (depends on 11)

The method of claim 11, wherein the solution further comprises a pesticidally acceptable carrier comprising water, dimethyl sulphoxide (DMSO), at least one buffer, Hoagland nutrient solution, at least one surfactant, or a combination thereof.