Peptide Impurity 70 TFA Salt CAS CATO-CPTD788570
| CAS No. | CATO-CPTD788570 |
| Molecular Formula | C66H107N21O22 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Peptide Impurity 70 TFA Salt is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1660.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570), a pharmacopoeial impurity reference standard (molecular formula C66H107N21O22C2HF3O2, MW 1660.73 g/mol) used for the identification and quantification of trace impurities in APIs.
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 manufactures Peptide Impurity 70 TFA Salt under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C66H107N21O22 C2HF3O2 |
| Molecular Weight | 1660.73 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 21 |
Related Peptide Standards
- Tau Peptide (306-317) trifluoroacetate salt (CAS 1003007-59-7)
- Peptide Impurity 82 (CAS 10491-78-8)
- Peptide T (CAS 106362-32-7)
- Peptide WE-14 (CAS 115136-18-0)
- Peptide YY (human) trifluoroacetate salt (CAS 118997-30-1)
- Peptide Impurity 15 (CAS 1227750-69-7)
- Peptide YY (3-36) (human) (CAS 123583-37-9)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
Recommended Standards
- Promethazine Impurity 64 (CAS CATO-C4X-141864)
- Brivaracetam Impurity 138 (CAS CATO-C4X-2007138)
- Tofacitinib Impurity 231 (CAS 2101951-20-4)
- 2-((4-Fluorobenzyl)(methyl)amino)acetamide (CAS 1090825-96-9)
- 2-(3-chlorophenyl)ethane-1-sulfonamide (CAS 919353-98-3)
- 2-(Morpholine-4-carbonyl)-3-(2-morpholino-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylonitrile (CAS 477735-21-0)
- (2-(1H-Pyrrol-1-yl)thiazol-4-yl)(pyrrolidin-1-yl)methanone (CAS 1235067-32-9)
- 2-(Dimethylamino)-6-iodophenol (CAS 1243286-73-8)
- 3-(Hydroxymethyl)benzo[d]oxazol-2(3H)-one (CAS 17832-99-4)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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