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4-Chromanone

4-Chromanone
CAS No.: 491-37-2
Molecular Formula: C9H8O2
Molecular weight: 148.15
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+86 18765828098
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Product Introduction

White crystals. Melting point is 39-40℃, boiling point is 128℃ (1.73kPa).


CHEMICAL PROPERTIES

PropertyValue

Melting point

35-38 °C(lit.)

Boiling point

127-128 °C13 mm Hg(lit.)

Density

1.1291

Refractive index

n20/D 1.575(lit.)

Fp

>230 °F

Storage temp.

Keep in dark place,Sealed in dry,Room Temperature

Form

Crystalline Powder, Crystals or Low Melting Mass

Color

White to yellow

Water Solubility

Slightly soluble in water.

BRN

124652

InChIKey

MSTDXOZUKAQDRL-UHFFFAOYSA-N

LogP

1.990 (est)

CAS DataBase Reference

491-37-2(CAS DataBase Reference)

NIST Chemistry Reference

4H-1-Benzopyran-4-one, 2,3-dihydro-(491-37-2)

EPA Substance Registry System

4H-1-Benzopyran-4-one, 2,3-dihydro- (491-37-2)


SAFETY INFORMATION

PropertyValue

Hazard Codes

Xi

Risk Statements

33-36/37/38

Safety Statements

24/25-36-26

WGK Germany

2

RTECS

DJ2981225

TSCA

Yes

HazardClass

IRRITANT

HS Code

29329990


PRODUCT USAGE

4-Chromanone is a critical heterocyclic intermediate widely utilized in the fine chemical and pharmaceutical industries. Its structural framework serves as a vital building block for the synthesis of various biologically active compounds, including flavonoids, coumarins, and chromone derivatives. In the pharmaceutical sector, it is used as a precursor for developing drugs with diverse therapeutic effects, such as anti-inflammatory, anti-tumor, and anti-hypertensive agents. Additionally, its derivatives are explored in agrochemicals for the creation of potent fungicides and herbicides. In the material sciences, 4-Chromanone is employed in the production of specialized dyes, photo-sensitive materials, and high-performance polymers. Its unique chemical reactivity makes it an essential reagent in organic synthesis for constructing complex molecular architectures in laboratory research.

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FAQ

Q: Are you a factory or a trading company?

A: We are a company integrating manufacturing and trading.

Q: Can you provide samples for testing before mass production?

A: Of course. We can send you samples free of charge, and we also include a COA. However, you will be responsible for the shipping fee.

Q: How can I get an accurate quote?

A: Please provide the exact product specifications, particle size, color, and intended use, and we will provide you with an accurate quote.

Q: Can you provide a COA?

A: Of course, but only for standard products. If you require an accurate COA, we will produce and test samples before providing you with an accurate COA.

Q: Do you accept ODM or OEM services?

A: Yes, we offer customized services for ingredients, packaging, and labeling. We have strong design capabilities. Please contact us to design your own brand.

Q: Can I visit your factory before placing a large order?

A: Of course. We welcome you at any time.

Q: What is the loading port?

A: Usually Qingdao or Tianjin.

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