Description

(S)-3-(4-tert-Butoxyphenyl) Butanoic Acid is a high-purity chiral intermediate of significant importance in advanced organic synthesis. This compound matters for its role as a key building block in the development of enantiomerically pure pharmaceuticals and fine chemicals. It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for producing active ingredients with specific stereochemical requirements.

Application

• Critical chiral intermediate in the synthesis of novel pharmaceutical active ingredients (APIs).
• Building block for advanced agrochemicals requiring specific stereochemistry for enhanced activity.
• Key starting material in academic and industrial research for developing new chemical entities.
• Precursor for liquid crystal materials and other advanced organic electronic compounds.
• Intermediate in the production of specialty polymers and fine chemicals with tailored properties.

Basic Information

Product Name	(S)-3-(4-tert-Butoxyphenyl) Butanoic Acid
CAS No.	209679-19-6
Molecular Formula	C14H20O3
Molecular Weight	236.31 g/mol
Synonyms	(S)-3-(4-(tert-Butoxy)phenyl)butanoic acid; (S)-3-[4-(tert-Butoxy)phenyl]butyric acid; (S)-4-(1-Carboxypropyl)phenyl tert-butyl ether; (S)-3-(p-tert-Butoxyphenyl)butyric acid; (S)-Tert-butyl 4-(1-carboxypropyl)phenyl ether; (S)-BA-t-Bu; (S)-3-(4-tert-Butyloxyphenyl)butanoic acid
EINECS	Contact for details

Quality Control

Our (S)-3-(4-tert-Butoxyphenyl) Butanoic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including chiral purity verification by HPLC, to meet the exacting standards required for pharmaceutical R&D and production. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

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
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.