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2-Hydroxymethylbenzoic acid, gamma-lactone

CAS No.:87-41-2
Product Grade: Industrial Grade
Purity / Assay: ≥98.0%
Molecular Formula:C₈H₆O₂
Molecular Weight:134.13 g/mol
Synonym(s):PHTHALIDE; 1(3H)-Isobenzofuranone; 1-Phthalanone; 2-Benzofuran-1(3H)-one

2-Hydroxymethylbenzoic acid, gamma-lactone, commonly known as phthalide, is a bicyclic organic compound characterized by a benzene ring fused to a five-membered lactone ring. It typically presents as a white to pale yellow crystalline solid and serves as the internal ester of 2-hydroxymethylbenzoic acid. This compound is valued for its stability and specific reactivity, particularly its ability to undergo ring-opening and substitution reactions under controlled conditions.

In industrial and research settings, this lactone is recognized as a versatile building block. It is primarily utilized as a precursor in the synthesis of more complex molecules across several chemical sectors. Due to its structural properties, it is handled as a technical-grade intermediate, requiring standard laboratory safety protocols to prevent inhalation or skin contact during processing and formulation.

• This compound serves as a critical intermediate in the pharmaceutical industry, where it is used to synthesize various therapeutic agents, including certain antidepressants and anticonvulsants. Its lactone ring provides a necessary scaffold for constructing diverse bioactive heterocyclic frameworks.

• In the field of agrochemicals, phthalide is utilized in the production of specific herbicides and fungicides. Its chemical structure allows for the development of active ingredients that target specific biological pathways in weeds and pathogens, enhancing the efficacy of modern crop protection strategies.

• The material is also employed in the synthesis of high-performance dyes and pigments. It acts as a precursor for various colorants, including phthalocyanine derivatives, which are valued for their intense color and durability in industrial coatings, plastics, and specialized printing applications.

• It is widely used in academic and industrial organic synthesis as a reagent for creating substituted benzoic acid derivatives. The predictable nature of its ring-opening reactions makes it an ideal starting point for exploring new synthetic methodologies and developing novel chemical entities.

25kg/drum, 180kg/drum, IBC Drum
CAS No.: 87-41-2

Product Name: 2-Hydroxymethylbenzoic acid, gamma-lactone

Purity / Assay:≥98.0%
Molecular Formula:C₈H₆O₂
Molecular Weight:134.13 g/mol
EINECS No.:201-744-0
Synonym(s):PHTHALIDE; 1(3H)-Isobenzofuranone; 1-Phthalanone; 2-Benzofuran-1(3H)-one

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