For any professional involved in chemical procurement or R&D, understanding the detailed specifications of a compound like 4-Hydroxy-2-Methylbenzoic Acid (CAS 578-39-2) is essential for making informed purchasing decisions. This article provides a comprehensive overview of its key characteristics, helping you ensure you are sourcing the right material for your applications.

Key Identification and Properties of 4-Hydroxy-2-Methylbenzoic Acid

At the core of any chemical transaction is accurate identification. 4-Hydroxy-2-Methylbenzoic Acid is unequivocally identified by its CAS Registry Number: 578-39-2. Its chemical identity is further defined by its molecular formula, C8H8O3, and a molecular weight of approximately 152.15 g/mol. These fundamental details are crucial for documentation and regulatory purposes.

Physical Appearance and Form

When you buy 4-Hydroxy-2-Methylbenzoic Acid, you can expect it to be supplied in a specific physical form. The standard appearance is typically a white to off-white or slightly pinkish powder or crystalline solid. The physical state and color can sometimes be indicators of purity or storage conditions, so observing these characteristics is part of quality assessment.

Critical Purity Metrics

Purity is arguably the most critical specification for any chemical intermediate. For 4-Hydroxy-2-Methylbenzoic Acid, common purity levels offered by manufacturers range from 97% to 99% or higher. High purity is essential for:

  • Accurate Chemical Reactions: Minimizing side reactions and ensuring desired product formation.
  • Downstream Processing: Simplifying purification steps for subsequent products.
  • Compliance: Meeting the stringent requirements for pharmaceutical and advanced material synthesis.

Reputable suppliers will clearly state the minimum purity level and often provide analytical data such as HPLC or GC reports. For buyers, it is always advisable to request a Certificate of Analysis (COA) for the specific batch you intend to purchase.

Important Physical Parameters

Other significant physical parameters for 4-Hydroxy-2-Methylbenzoic Acid include its melting point, which typically falls within the range of 177-181°C. This narrow range is another indicator of good purity. Information regarding solubility, density, and boiling point (though it may decompose upon boiling) is also relevant for handling, storage, and process design.

Reliable Sourcing from China

As a manufacturer and supplier based in China, we are committed to providing 4-Hydroxy-2-Methylbenzoic Acid that meets these exacting specifications. We ensure that our product consistently exhibits the expected appearance and high purity, supported by thorough quality control and documentation. If you are looking to purchase this compound, we invite you to contact us for detailed specifications, pricing, and sample availability to support your procurement needs.