Description

o-Nitrophenyl Stearate is a high-purity organic ester compound, specifically the stearic acid ester of o-nitrophenol. This specialty chemical serves as a critical intermediate and functional additive in advanced synthesis and material science. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and polymer sectors for applications requiring precise chemical modification or controlled release properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, where the nitrophenyl group acts as a photolabile protecting group or a precursor for further functionalization.
• Agrochemical Research: Serves as a key building block in developing novel pesticides and herbicides, leveraging its ester linkage for controlled degradation studies.
• Polymer Additive & Modifier: Functions as a plasticizer, stabilizer, or cross-linking agent in specialty polymer formulations to alter physical properties like flexibility and UV stability.
• Biochemical Research: Employed as a substrate in enzymatic assays, particularly for lipase and esterase activity studies, due to its specific hydrolysis characteristics.
• Organic Synthesis Reagent: Acts as an acylating agent or a protected form of stearic acid in multi-step synthetic pathways for fine chemicals.
• Material Science: Investigated for use in the development of advanced coatings, films, and nanomaterials where surface modification is required.

Basic Information

Product Name	o-Nitrophenyl Stearate
CAS No.	104809-27-0
Molecular Formula	C₂₄H₃₉NO₄
Molecular Weight	405.57 g/mol
Synonyms	2-Nitrophenyl Octadecanoate; Stearic Acid 2-Nitrophenyl Ester; Octadecanoic Acid 2-Nitrophenyl Ester; o-Nitrophenyl Octadecanoate; ONPS; 2-Nitrophenyl Stearate; 2-Nitrophenoxycarbonylheptadecane
EINECS	Contact for details

Quality Control

Our o-Nitrophenyl Stearate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, IR for identification, and residual solvent analysis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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