Biotinyl-(Leu?,D-Trp22,Tyr2?)-Somatostatin-28 trifluoroacetate salt CAS 143519-58-8
| CAS No. | 143519-58-8 |
| Molecular Formula | C148H223N43O43S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Biotinyl-(Leu?,D-Trp22,Tyr2?)-Somatostatin-28 trifluoroacetate salt.
Biotinyl-(Leu?,D-Trp22,Tyr2?)-Somatostatin-28 trifluoroacetate salt (CAS 143519-58-8), molecular formula C148H223N43O43S3C2HF3O2 and molecular weight 3502.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Biotinyl-(Leu?,D-Trp22,Tyr2?)-Somatostatin-28 trifluoroacetate salt (C148H223N43O43S3C2HF3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 59.0, corresponding to approximately 59 ring(s) or double-bond equivalent(s). With a molecular weight of 3502.87 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Biotinyl-(Leu?,D-Trp22,Tyr2?)-Somatostatin-28 trifluoroacetate salt 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 | C148H223N43O43S3 C2HF3O2 |
| Molecular Weight | 3502.87 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) | 59.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 43 |
| Sulfur Atoms | 3 |
Related Biotinyl Standards
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- Biotinyl-Gly-Gly-OH (G-4485.1000) (CAS 120447-60-1)
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Recommended Standards
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- Vitamin K2 (CAS 863-61-6)
- (+)-Drimanol (CAS 33762-81-1)
- N-(5-acetyl-2-hydroxybenzyl)-2-chloroacetamide (CAS 632301-30-5)
- 2-({[3-(benzyloxy)phenyl]amino}methylidene)-2,3-dihydro-1H-indene-1,3-dione (CAS 1022467-71-5)
- 5-Ethyl-2-methylisonicotinic acid (CAS 855270-32-5)
- 1-Bromo-3-(chloromethyl)-2,5-difluorobenzene (CAS 1159186-57-8)
- 2,2-Dimethyl-5-styryloxazolidin-4-one (CAS 721-19-7)
- Ethyl 2-(3-cyano-2-oxo-4-phenylpyridin-1(2H)-yl)acetate (CAS 478080-30-7)
- Tetrapeptide-30/Tegopep (CAS 1036207-61-0)
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