Description

Imiquimod Impurity 2 is a designated reference standard used in the analytical profiling and quality control of the pharmaceutical compound Imiquimod. This impurity is critical for ensuring the safety, efficacy, and regulatory compliance of the final drug product by enabling precise identification and quantification during manufacturing. It is an essential material for pharmaceutical R&D laboratories, quality assurance/quality control (QA/QC) departments, and contract research organizations (CROs) focused on developing and monitoring topical immunomodulator therapies.

Application

• Pharmaceutical Reference Standard: Primary use as a certified reference material (CRM) for the identification and quantification of Imiquimod Impurity 2 in active pharmaceutical ingredients (APIs) and finished drug products.
• Method Development and Validation: Crucial for developing, optimizing, and validating analytical methods, particularly High-Performance Liquid Chromatography (HPLC) and Liquid Chromatography-Mass Spectrometry (LC-MS).
• Quality Control & Stability Studies: Used in routine batch testing and stability-indicating assays to monitor impurity levels throughout the drug's shelf life and ensure they remain within ICH (International Council for Harmonisation) guidelines.
• Regulatory Submissions: Supports the preparation of regulatory documentation (e.g., for FDA, EMA) by providing characterized impurity data required for drug master files (DMFs) and investigational new drug (IND) applications.
• Process Chemistry Research: Aids in understanding the formation pathways of this impurity during Imiquimod synthesis, helping to optimize manufacturing processes to minimize its generation.

Basic Information

Product Name	Imiquimod Impurity 2
CAS No.	1807606-78-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Imiquimod Related Compound 2; Imiquimod EP Impurity B; Imiquimod USP Impurity; 1-(2-Methylpropyl)-1H-imidazo[4,5-c]quinolin-4-amine Impurity; Aldara Impurity; R-837 Impurity; S-26308 Impurity; Imiquimod Process Impurity
EINECS	Contact for details

Quality Control

Every batch of Imiquimod Impurity 2 is manufactured and analyzed under strict quality management systems. Our products undergo rigorous quality testing, including advanced chromatographic techniques, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) is supplied with each shipment, detailing batch-specific results. Quality standards are aligned with current guidelines for pharmaceutical reference standards.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) or as indicated on the certificate of analysis. For long-term storage, keep the container in a cool, dry, and well-ventilated area. Handle and store in accordance with good laboratory practices.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Purity (HPLC)	≥ 95.0%
Related Substances (HPLC)	Individual impurity: ≤ 1.0% Total impurities: ≤ 5.0%
Residual Solvents (GC)	Complies with ICH Q3C
Water Content (KF)	≤ 5.0%

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