Description

Butanoic Acid, 3-Hydroxy-4-(Triphenylmethoxy)-, Methyl Ester, (R) is a high-purity, chiral synthetic intermediate of significant importance in advanced organic synthesis. This compound matters for its role as a key building block in the production of complex, biologically active molecules, where stereochemical purity is paramount. It is primarily needed by research institutions and pharmaceutical manufacturers engaged in the development of new active pharmaceutical ingredients (APIs), fine chemicals, and specialty materials.

Application

• Pharmaceutical Intermediate: A critical chiral synthon in the multi-step synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Used as a starting material or reagent in stereoselective reactions to construct complex molecular architectures.
• Fine Chemical Production: Serves as a building block for manufacturing specialty chemicals, agrochemicals, and advanced materials.
• Academic & Industrial Research: Employed in method development and exploratory chemistry within R&D laboratories.
• Process Chemistry: Evaluated for scale-up in pilot plants and commercial manufacturing processes for high-value products.

Basic Information

Product Name	Butanoic Acid, 3-Hydroxy-4-(Triphenylmethoxy)-, Methyl Ester, (R)
CAS No.	144754-24-5
Molecular Formula	C25H26O4
Molecular Weight	390.47 g/mol
Synonyms	(R)-Methyl 3-Hydroxy-4-(triphenylmethoxy)butanoate; (R)-Methyl 3-Hydroxy-4-trityloxybutyrate; (R)-Methyl 4-(Trityloxy)-3-hydroxybutyrate; (R)-3-Hydroxy-4-(triphenylmethoxy)butyric Acid Methyl Ester; (R)-MTOB; (R)-HTB Methyl Ester; (R)-Trityl Protected 3-Hydroxybutyrate Methyl Ester; (R)-Methyl 3-Hydroxy-4-[(triphenylmethyl)oxy]butanoate
EINECS	Contact for details

Quality Control

Our Butanoic Acid, 3-Hydroxy-4-(Triphenylmethoxy)-, Methyl Ester, (R) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure compliance with exacting standards for research and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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