Tau Peptide (295-309) trifluoroacetate salt CAS 330456-46-7
| CAS No. | 330456-46-7 |
| Molecular Formula | C66H110N20O21 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7), a certified reference material (molecular formula C66H110N20O21C2HF3O2, MW 1633.75 g/mol) for analytical method development and quality control.
Structurally, Tau Peptide (295-309) trifluoroacetate salt (C66H110N20O21C2HF3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 1633.75 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C66H110N20O21 C2HF3O2 |
| Molecular Weight | 1633.75 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 20 |
Related Tau 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
- 3-Chloro-4-(4-methyl-1H-pyrazol-1-yl)benzaldehyde (CAS 1541538-18-4)
- 7,8-Dihydro-L-biopterin (CAS 6779-87-9)
- L-Cysteine Sulfinic Acid 2 (CAS 1315057-92-1)
- Torasemide Impurity 17 (CAS 5602-90-4)
- 3,4,5-Trimethacarb (CAS 2686-99-9)
- Ethyl 4-hydroxypiperidine-3-carboxylate (CAS 1781609-02-6)
- 2-(6-Chloro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (CAS 507484-48-2)
- Benzyl 11-bromoundecanoate (CAS 78277-30-2)
- Methyl 5,6-diamino-2-ethoxypyrimidine-4-carboxylate (CAS 149352-47-6)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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