(Tyr11)-Somatostatin-14 CAS 59481-27-5
| CAS No. | 59481-27-5 |
| Molecular Formula | C76H104N18O20S2 |
| Molecular Weight | 1653.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(Tyr11)-Somatostatin-14 (CAS 59481-27-5), molecular formula C76H104N18O20S2 and molecular weight 1653.88 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C76H104N18O20S2, (Tyr11)-Somatostatin-14 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1653.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C76H104N18O20S2 |
| Molecular Weight | 1653.88 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) | 34.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 18 |
| Sulfur Atoms | 2 |
Related Tyr Standards
- Somatostatin Impurity 17 (CAS CATO-C4X-235017)
- Somatostatin Impurity 21 (CAS CATO-C4X-235021)
- Somatostatin-14 (reduced) (CAS 40958-31-4)
- Somatostatin Impurity 20 (CAS CATO-C4X-235020)
- Somatostatin-14 AC Salt (CAS 38916-34-6)
- Somatostatin 14 (CAS 51110-01-1)
- Somatostatin Impurity 22 (CAS CATO-C4X-235022)
- Somatostatin Impurity 2 (CAS CATO-C4X-23502)
Recommended Standards
- Polybia-MP1 (CAS 872043-01-1)
- Fondaparinux Sodium Impurity 12 (CAS CATO-C4X-205212)
- N-(Mal-PEG6)-N-bis(PEG7-TCO) (CAS 2093152-84-0)
- N-nitroso-colistin b hydrogen methanesulfonate-1 (CAS CATO-C4X-225551)
- 1-(5-(tert-Butylthio)-3-methylpyridin-2-yl)-4-ethylpiperazine (CAS 1355226-03-7)
- 7-Iodo-3,4-dihydro-2H-benzo[b][1,4]dioxepine (CAS 306934-90-7)
- 5-tert-butylpyridine-2-sulfonyl chloride (CAS 1699220-43-3)
- 4-bromo-1-(bromomethyl)-2-methoxybenzene (CAS 854778-42-0)
- Sodium 3-(3-methoxyphenyl)propanoate (CAS 1260671-96-2)
- 6-Bromo-[1,2,5]thiadiazolo[3,4-b]pyridine (CAS 72023-75-7)
- SipeiMine-3β-D-glucoside (CAS 32685-93-1)
- 1-(2-Bromoethyl)piperazine dihydrobromide (CAS 89727-93-5)
- tert-Butyl N-[2-(azetidin-3-yl)propan-2-yl]carbamate (CAS 1333210-41-5)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
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