For professionals in the chemical and pharmaceutical industries, ensuring the quality and consistency of raw materials is non-negotiable. Diethylene Glycol Monoethyl Ether (CAS 111-90-0) is a widely utilized intermediate, and understanding its precise specifications is key to successful procurement and application. This guide aims to equip buyers with the knowledge to critically assess suppliers and products of this important chemical compound.

The primary specification for Diethylene Glycol Monoethyl Ether that buyers frequently scrutinize is its purity. For applications as a synthesis material intermediate, particularly in pharmaceuticals, a purity exceeding 99% is often required. Suppliers should readily provide a Certificate of Analysis (CoA) detailing this, along with other critical parameters. These might include limits on impurities such as ethylene glycol monoethyl ether and triethylene glycol monoethyl ether, as well as the absence of excessive free acid or water content, which can be detrimental to sensitive reactions.

The physical appearance of Diethylene Glycol Monoethyl Ether, typically described as a white powder, is another important characteristic. While its appearance can offer a preliminary indication of quality, it is the detailed analytical data that truly confirms suitability. Other key specifications often found on a CoA or product datasheet include the boiling range, refractive index, and density. For example, a specific boiling range like 194-196 °C can be critical for process control in synthesis operations.

When you are looking to buy Diethylene Glycol Monoethyl Ether, it is imperative to engage with suppliers who are transparent about their product specifications and quality control processes. Manufacturers in China, many of whom hold ISO 9001 certifications, are capable of producing high-purity grades consistently. Always request detailed product information, including the CoA, before placing an order. This diligence ensures that the material you purchase will perform as expected in your specific formulation or synthesis pathway, whether it's for a pharmaceutical intermediate or a fine chemical product.

For R&D scientists and procurement managers, understanding these specifications also aids in comparing different suppliers. A clear specification sheet and a comprehensive CoA are indicators of a professional and quality-focused manufacturer. By prioritizing these details when you buy Diethylene Glycol Monoethyl Ether, you mitigate risks and ensure the integrity of your final products. This focus on quality is what distinguishes reliable suppliers in the competitive chemical market.