Leuprorelin impurity 37 CAS 112642-11-2
| CAS No. | 112642-11-2 |
| Molecular Formula | C59H84N16O12 |
| Molecular Weight | 1209.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Leuprorelin impurity 37 (CAS 112642-11-2), a pharmacopoeial impurity reference standard (molecular formula C59H84N16O12, MW 1209.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Leuprorelin impurity 37 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1209.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Leuprorelin impurity 37 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C59H84N16O12 |
| Molecular Weight | 1209.40 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 16 |
Related Leuprorelin Standards
- Leuprorelin Impurity N8 (CAS 112642-11-2（free base）)
- Leuprorelin Impurity 45 (CAS CATO-C4X-182245)
- Leuprorelin Impurity 59 (CAS CATO-C4X-182259)
- Leuprorelin EP Impurity F (CAS 1872435-00-1)
- Leuprorelin Impurity 60 (CAS CATO-C4X-182260)
- Leuprorelin EP Impurity G (CAS 112710-57-3)
- Leuprorelin EP Impurity H (CAS 112710-58-4)
- Leuprorelin Impurity 47 (CAS CATO-C4X-182247)
Recommended Standards
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Why CATO?
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