For procurement specialists and R&D scientists in the chemical and pharmaceutical sectors, a deep understanding of product specifications is crucial when making purchasing decisions. (R)-(+)-Indoline-2-carboxylic Acid (CAS 98167-06-7) is a prime example of a fine chemical where precise specifications directly impact its utility and efficacy in downstream applications.

When you decide to buy (R)-(+)-Indoline-2-carboxylic Acid, you're looking for more than just a CAS number. Key parameters such as purity, physical form, and stereochemical integrity are vital. The standard purity for pharmaceutical intermediates like this is typically above 95%, with many suppliers offering material at 97% or even higher purity levels, as confirmed by HPLC analysis. This high purity is essential to prevent unwanted side reactions or contamination in sensitive synthesis processes.

The physical characteristics are also important. (R)-(+)-Indoline-2-carboxylic Acid is consistently described as an off-white to light yellow solid. Its melting point, typically in the range of 170-177°C, serves as another indicator of its purity and identity. Understanding these physical properties helps in handling, storage, and process integration. When you purchase from a reputable manufacturer, these details will be clearly stated on their product data sheets.

Perhaps the most critical specification for this particular compound is its optical activity. The designation '(R)-(+)' signifies its specific stereochemistry. The reported optical rotation, often around [α]/D +116±3° (c = 1 in 1 M HCl), confirms that you are receiving the desired enantiomer. This is non-negotiable for applications requiring enantioselectivity, such as the synthesis of chiral drugs. It is paramount to ensure the supplier guarantees this specific enantiomeric form.

Storage conditions are also part of the specification, typically recommending storage at 0-5°C or in a cool, dry place to maintain stability. For businesses looking to establish a consistent supply chain, understanding these requirements from a manufacturer is key to preserving product integrity from receipt to use.

When engaging with potential suppliers, especially those in China, it is wise to request a comprehensive Certificate of Analysis (CoA) for each batch. This document should detail all relevant specifications, including assay (purity), physical appearance, optical rotation, and any residual solvent content. This due diligence ensures you are making an informed purchase decision and mitigate risks.

For bulk inquiries, requesting a quote from various manufacturers is standard practice. Comparing not only the price but also the detailed specifications and the supplier's ability to provide batch-to-batch consistency will lead to the most advantageous procurement. Selecting a partner that prioritizes quality and transparency in their specifications is essential for successful B2B transactions.