3-Hydroxy-4,4-dimethyldihydrofuran-2(3H)-one, CAS No. 79-50-5

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79-50-5

Catalog No. EBD2204645

CAS 79-50-5

Name 3-Hydroxy-4,4-dimethyldihydrofuran-2(3H)-one

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Basic Information

Synonyms: DL-Pantolactone (+-)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-one 2(3H)-Furanone,dihydro-3-hydroxy-4,4-dimethyl-,(+-)- DL-alpha-Hydroxy-beta,beta-dimethyl-alpha-butyrolactone DL-PANTOYLLACTONE D-(-)-Pantoyllactone 3-Hydroxy-4,4-dimethyldihydrofuran-2(3H)-one dl-(-)-pantoyllactone DL-alpha-Hydroxy-beta,beta-dimethyl-epsilon-butyrolactone

Molecular Formula: C6H10O3

Molecular Weight: 130.14

MDL Number: MFCD00005386

Categories: Functional Chemicals > Cosmetics and Synthetic Ingredients > Other Cosmetic Ingredients Medicinal Chemistry > Biochemicals and Life Science Reagents > Vitamins and Coenzymes Medicinal Chemistry > Pharmaceutical Excipients > Novel and Functional Excipients

Product Description:

3-Hydroxy-4,4-dimethyldihydrofuran-2(3H)-one, commonly known as DL-pantolactone, is a chiral lactone derivative and a key synthetic intermediate in the production of pantothenic acid (vitamin B5) and its derivatives, such as panthenol and calcium pantothenate. Structurally, it features a dihydrofuranone ring with a hydroxyl group and two geminal methyl groups, making it a versatile building block for vitamin chemistry. Its primary application lies in the pharmaceutical and nutraceutical industries as a precursor for vitamin B5, which is essential for coenzyme A synthesis and energy metabolism. Additionally, DL-pantolactone is widely used in cosmetics and personal care products as a raw material for provitamin B5 (panthenol), valued for its moisturizing, skin-soothing, and hair-conditioning properties. It also serves as a chiral auxiliary in asymmetric synthesis and as a starting material for various bioactive compounds. The compound is typically produced via chemical synthesis or biotransformation, and its racemic form is commercially available for industrial-scale applications. It is generally recognized as safe (GRAS) when used in approved concentrations in food and cosmetic formulations.

Physical Properties

Melting Point: 74-78 °C(lit.)

Boiling Point: 224.6 °C at 760 mmHg

Flash Point: 99 °C

Density: 1.165 g/cm3