Description

4-Amidinobenzoic Acid Methyl Ester Hydrochloride is a high-purity organic salt derivative of amidinobenzoic acid, serving as a critical synthetic intermediate and building block. Its value lies in its well-defined chemical structure, which provides a reactive amidine group protected as a hydrochloride salt for enhanced stability and handling. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical sectors, particularly for developing serine protease inhibitors and other bioactive molecules. The product is supplied as a high-grade material to ensure reliable performance in demanding synthesis workflows.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting enzymatic pathways.
• Protease Inhibitor Research: Used in the development and study of trypsin-like serine protease inhibitors due to its amidine functionality.
• Agrochemical Synthesis: Serves as a precursor in creating advanced active ingredients for crop protection products.
• Bioconjugation & Labeling: The reactive ester group facilitates conjugation chemistry for creating probes and labeled compounds.
• Chemical Biology Tool: Employed in the design of activity-based probes (ABPs) for studying enzyme function and inhibition.
• Custom Synthesis: A versatile starting material for contract research organizations (CROs) and fine chemical manufacturers.

Basic Information

Product Name	4-Amidinobenzoic Acid Methyl Ester Hydrochloride
CAS No.	42823-73-4
Molecular Formula	C9H11ClN2O2
Molecular Weight	214.65 g/mol
Synonyms	Methyl 4-Amidinobenzoate Hydrochloride; Methyl p-Amidinobenzoate Hydrochloride; 4-(Aminomethyleneamino)benzoic Acid Methyl Ester Hydrochloride; Benzoic acid, 4-(aminoiminomethyl)-, methyl ester, hydrochloride; Methyl 4-Carbamimidoylbenzoate Hydrochloride; p-(Aminomethyleneamino)benzoic Acid Methyl Ester Hydrochloride; Methyl 4-Guanidinobenzoate Hydrochloride (common name)
EINECS	Contact for details

Quality Control

Every batch of 4-Amidinobenzoic Acid Methyl Ester Hydrochloride is manufactured under a strict quality management system. Our products undergo rigorous quality testing to ensure compliance with industry standards for identity, purity, and consistency. Certificates of Analysis (COA) are available upon request, detailing key parameters such as assay, impurity profile, and residual solvents. We support development and commercial projects requiring material traceability and documentation.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect stability and handling properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
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.