Description

p-Nitrophenyl Propionate is a high-purity organic ester compound widely utilized as a critical reagent and synthetic intermediate. Its primary value lies in its role as a chromogenic substrate for detecting enzymatic activity, particularly for lipases and esterases, enabling precise biochemical analysis and research. This product is essential for pharmaceutical R&D, diagnostic kit manufacturing, and academic laboratories focused on enzymology and chemical synthesis.

Application

• Enzyme Assay Substrate: A key chromogenic substrate for the colorimetric determination of lipase, esterase, and protease activity in biochemical research and diagnostic applications.
• Pharmaceutical Intermediate: Serves as a versatile building block in the synthesis of more complex active pharmaceutical ingredients (APIs) and fine chemicals.
• Diagnostic Reagent: Used in the formulation of clinical diagnostic kits and strips for measuring specific enzyme levels in biological samples.
• Biochemical Research: Employed in kinetic studies, enzyme inhibition assays, and high-throughput screening (HTS) within academic and industrial R&D settings.
• Chemical Synthesis: Acts as an acylating agent or protecting group intermediate in organic synthesis routes.
• Quality Control: Utilized as a reference standard in the quality control of enzymatic preparations and related products.

Basic Information

Product Name	p-Nitrophenyl Propionate
CAS No.	1956-06-5
Molecular Formula	C9H9NO4
Molecular Weight	195.17 g/mol
Synonyms	4-Nitrophenyl propionate; p-Nitrophenyl propanoate; Propionic acid 4-nitrophenyl ester; PNPP; 4-NPP; 4-Nitrophenyl propionic ester; 1-(4-Nitrophenyl) 1-propionate
EINECS	217-804-5

Quality Control

Our p-Nitrophenyl Propionate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	86 - 90 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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