$4135.00 - $12406.00
Tranexamic Acid Impurity 25 (CAS 861518-79-8) is independently indexed as 4-(((4-(chloromethyl)benzoyl)oxy)methyl)benzoic acid. It is an analytical impurity material rather than a peptide building block.
From a customer-search and taxonomy perspective, this SKU belongs more naturally with Impurity Analysis & Bioactivity Research than with protected amino acids. The existing product URL can remain in place while the category assignment is corrected or cross-listed.
Product Information
| Product Name | Tranexamic Acid Impurity 25 |
| Catalog No. | AS4097 |
| CAS No. | 861518-79-8 |
| Molecular Formula | C16H13ClO4 |
| Molecular Weight | 304.73 g/mol |
| Building Block Type | Tranexamic acid-related pharmaceutical impurity |
| Primary Applications | Impurity identification; HPLC/LC-MS method development; process impurity profiling; analytical research |
Analytical Use
This material can support HPLC/UPLC or LC-MS method development, retention-time comparison, impurity identification, and process-related impurity profiling. Suitability for quantitative calibration depends on the actual lot purity and certificate supplied.
Do Not Overstate Reference-Standard Status
A material sold as a pharmaceutical impurity is not automatically a certified reference material. Alan Scientific should only claim CRM or pharmacopoeial-reference status when the lot-specific certificate provides the required assigned value and traceability.
Procurement and QC
Confirm CAS 861518-79-8, formula C16H13ClO4, MW 304.73 g/mol, and the CAS-defined structure. For analytical use, lot-specific HPLC, MS/NMR identity data, and assay value are more useful than product name alone.
Procurement and QC Considerations
For method-development work, order against the exact CAS and request the lot-specific COA before assigning a chromatographic peak to this impurity.
Product Documents
A Safety Data Sheet (SDS / MSDS) is available for this product to support laboratory handling, storage and safety assessment.
Tranexamic Acid Impurity 25 MSDS
Frequently Asked Questions
Is Tranexamic Acid Impurity 25 a peptide building block?
No. It is a pharmaceutical impurity used for analytical research.
Why should I verify the CAS number?
Impurity numbering can vary between suppliers; CAS and structure reduce the risk of ordering the wrong impurity.
Is AS4097 automatically a certified reference material?
No. Certified status requires lot-specific assigned value and traceability documentation.