Sodium 4-Aminosalicylate Dihydrate CAS 6018-19-5

Identity and specification

Sodium 4-Aminosalicylate Dihydrate is also called sodium aminosalicylate dihydrate or PAS-Na dihydrate. CAS 6018-19-5 identifies the dihydrate; it must be distinguished from the free acid and from material reported on an anhydrous basis.

Quality controls for purchasing

• Confirm identity, sodium content, hydrate state, assay basis, water and pH using agreed methods.
• Define limits for 4-aminosalicylic acid, other related substances, residual solvents and elemental impurities.
• For a regulated project, define the required standard, traceability and document requirements before supplier qualification. This page does not establish those requirements or an offered regulated grade.

Applications and grade selection

This page supports chemical identity and procurement qualification. It does not demonstrate product registration, pharmacopoeial compliance, a pharmaceutical grade or suitability for a regulated use; those points require buyer requirements and current supplier documentation.

Storage and handling

Protect the material from light, moisture and incompatible oxidizing conditions in a tightly sealed package. Store within the temperature range stated by the supplier, limit repeated opening and follow the current SDS and approved quality procedure.

Documentation and quotation details

An inquiry should identify the required standard, intended market, assay basis, water and impurity limits, quantity, packaging, destination and required documents. Ask whether the proposed material can be evaluated against those requirements before approval.