3-METHYL-CHROMEN-2-ONE

Name: 3-METHYL-CHROMEN-2-ONE
Brand: Zhengzhou Whchem

CAS：2445-82-1 | 3-METHYL-CHROMEN-2-ONE | Whchem

CAS: 2445-82-1

Other Names

3-methyl-2H-chromen-2-one;3-METHYL-CHROMEN-2-ONE;3-methylcoumarin;3-METHYL-1H-1-BENZOPYRAN-2-ONE;3-methyl-2h-1-benzopyran-2-on;3-methyl-2h-1-benzopyran-2-one;3-Methyl-2-oxo-2H-benzopyran;3-Methyl-2-oxochromene

Molecular Formula

Purity

>97%

Molecular Weight

160.17 g/mol

EINECS

219-498-8

Structure Available Verified Product

English Name	3-METHYL-CHROMEN-2-ONE
English Synonyms	3-methyl-2H-chromen-2-one;3-METHYL-CHROMEN-2-ONE;3-methylcoumarin;3-METHYL-1H-1-BENZOPYRAN-2-ONE;3-methyl-2h-1-benzopyran-2-on;3-methyl-2h-1-benzopyran-2-one;3-Methyl-2-oxo-2H-benzopyran;3-Methyl-2-oxochromene
CAS Number	2445-82-1
Molecular Formula	C10H8O2
Molecular Weight	160.17 g/mol
EINECS Number	219-498-8
Related Categories
Mol File	Download MOL File
Structure Image

Property	Value
Melting point	91°C
Boiling point	292.5°C (estimate)
Density	1.0924 (rough estimate)
Refractive index	1.5300 (estimate)
Storage condition	Store at room temperature
Appearance	Pale yellow to yellow solid
LogP	2.420 (est)

3-METHYL-CHROMEN-2-ONE (CAS 2445-82-1) is a high-purity fine chemical intermediate widely used in organic synthesis, pharmaceutical R&D, agrochemical manufacturing and specialty chemical applications.

As a professional supplier, Zhengzhou Whchem provides 3-METHYL-CHROMEN-2-ONE with >97% purity, COA, structure confirmation and flexible packaging, available from research quantities to commercial scale with global shipping.

Category	Description (English Translation)
Uses & Synthesis Methods Chemical Properties: White crystals. Melting point 91°C, boiling point 292.5°C. Soluble in alcohol, slightly soluble in water. Uses: This compound has a vanilla-like fragrance and is used in perfumes and cosmetics. It is also used as an organic synthesis intermediate. Production Method: Prepared by the reaction of salicylaldehyde with propionic anhydride. The cyclization reaction of salicylaldehyde and propionic anhydride is carried out in the presence of sodium propionate and iodine crystals. After reacting at 140°C for 2 hours, water and propionic acid are distilled off at 120°C. The temperature is then raised to 220-230°C and maintained for 4 hours. The reaction mixture is poured into ice water and cooled to crystallize. The crystals are dissolved in water, neutralized with sodium sulfonate to pH 7-8 to remove propionic acid and iodine. After cooling and crystallization, the crude product is obtained and recrystallized from ethanol to give the final product.

Category

Description (English Translation)

Uses & Synthesis Methods

Chemical Properties: White crystals. Melting point 91°C, boiling point 292.5°C. Soluble in alcohol, slightly soluble in water.

Uses: This compound has a vanilla-like fragrance and is used in perfumes and cosmetics. It is also used as an organic synthesis intermediate.

Production Method: Prepared by the reaction of salicylaldehyde with propionic anhydride. The cyclization reaction of salicylaldehyde and propionic anhydride is carried out in the presence of sodium propionate and iodine crystals. After reacting at 140°C for 2 hours, water and propionic acid are distilled off at 120°C. The temperature is then raised to 220-230°C and maintained for 4 hours. The reaction mixture is poured into ice water and cooled to crystallize. The crystals are dissolved in water, neutralized with sodium sulfonate to pH 7-8 to remove propionic acid and iodine. After cooling and crystallization, the crude product is obtained and recrystallized from ethanol to give the final product.

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3-METHYL-CHROMEN-2-ONE

CAS：2445-82-1 | 3-METHYL-CHROMEN-2-ONE | Whchem

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