Peptide 438 CAS CATO-CPTD788438
| CAS No. | CATO-CPTD788438 |
| Molecular Formula | C155H276N46O40S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Peptide 438 (C155H276N46O40S3C2HF3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Peptide 438 (CAS CATO-CPTD788438), molecular formula C155H276N46O40S3C2HF3O2 and molecular weight 3634.40 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Peptide 438 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 | C155H276N46O40S3 C2HF3O2 |
| Molecular Weight | 3634.40 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 41.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 46 |
| Sulfur Atoms | 3 |
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
- 2-[(1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptan-5-yl]ethanol (CAS 2276438-37-8)
- 3-(1H-Benzo[d]imidazol-2-yl)-4-chloroaniline (CAS 313402-16-3)
- N-(5-(Benzofuran-2-yl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 922098-84-8)
- 5-Cyano-dibenzosuberane (CAS 1729-63-1)
- (4'-(Diphenylamino)-[1,1'-biphenyl]-4-yl)boronic acid (CAS 668493-36-5)
- n-(2-Fluoro-5-nitrophenyl)methanesulfonamide (CAS 123343-99-7)
- (4-Aminophenyl)(4-(2-fluorophenyl)piperazin-1-yl)methanone (CAS 885949-71-3)
- 1-Bromooctane (CAS 111-83-1)
- 2-N-ethyl-1,3,5-triazine-2,4-diamine (CAS 30368-49-1)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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