Peptide Impurity 27 CAS 1350456-68-6
| CAS No. | 1350456-68-6 |
| Molecular Formula | C35H43N7O11 |
| Molecular Weight | 737.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 737.76 g/mol gives Peptide Impurity 27 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Peptide Impurity 27 (CAS 1350456-68-6), a pharmacopoeial impurity reference standard (molecular formula C35H43N7O11, MW 737.76 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, Peptide Impurity 27 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 737.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Peptide Impurity 27 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 | C35H43N7O11 |
| Molecular Weight | 737.76 g/mol |
| Purity | ≥98% |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 7 |
Related Peptide Standards
- Peptide Impurity 26 (CAS 1350456-66-4)
- Peptide Impurity 28 (CAS 1350456-64-2)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
- Peptide T (CAS 106362-32-7)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com