Description

Methyl (4E,8E)-2-(2,3-dihydroxy-2-methyl-butanoyl)oxy-3-(3-hydroxy-2-methyl-butanoyl)oxy-8-methyl-13-methylidene-12-oxo-11-oxabicyclo[8.3.0]trideca-4,8-diene-4-carboxylate is a complex, high-purity macrocyclic compound of significant interest in advanced organic synthesis. This molecule serves as a critical intermediate or reference standard for the development of novel bioactive compounds, particularly in pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for its unique structural framework.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially those with complex macrocyclic or polyketide-like structures.
• Reference Standard: Used in analytical laboratories for method development, validation, and quality control of related substances.
• Agrochemical Research: Serves as a precursor in the development of new active ingredients with potential herbicidal or insecticidal properties.
• Academic & Contract Research: Essential material for universities and CROs conducting research in natural product synthesis, medicinal chemistry, and chemical biology.
• Process Chemistry: Used in route scouting and optimization studies for the scalable production of target molecules.
• Fine Chemical Synthesis: Intermediate for creating specialized flavors, fragrances, or advanced materials requiring specific chiral centers and functional groups.

Basic Information

Item	Detail
Product Name	Methyl (4E,8E)-2-(2,3-dihydroxy-2-methyl-butanoyl)oxy-3-(3-hydroxy-2-methyl-butanoyl)oxy-8-methyl-13-methylidene-12-oxo-11-oxabicyclo[8.3.0]trideca-4,8-diene-4-carboxylate
CAS No.	73522-61-9
Molecular Formula	C27H38O11
Molecular Weight	538.59 g/mol
Synonyms	Lasalocid methyl ester; Lasalocid A methyl ester; Antibiotic X-537A methyl ester; 2,3-Dihydroxy-2-methylbutyric acid 4-ester with methyl 13-deoxy-5,11-dihydroxy-4,8-dimethyl-12-oxo-9-oxabicyclo[8.3.0]trideca-4,8-diene-2,3-dicarboxylate; Methyl ester of Lasalocid A; [1R-(1R*,3E,5E,8S*,9S*,11R*,12R*)]-Methyl 9-[(2S,3S,5R)-3,5-dihydroxy-2,4-dimethyl-1-oxoheptyl]oxy-5-hydroxy-4,8,12-trimethyl-13-oxo-11-oxabicyclo[8.3.0]trideca-3,5-diene-3-carboxylate
EINECS	Contact for details

Quality Control

Our methyl (4E,8E)-2-(2,3-dihydroxy-2-methyl-butanoyl)oxy-3-(3-hydroxy-2-methyl-butanoyl)oxy-8-methyl-13-methylidene-12-oxo-11-oxabicyclo[8.3.0]trideca-4,8-diene-4-carboxylate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing including HPLC, NMR, and MS to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting compliance with customer specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as specified on the label or COA. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.