(Lys(Ac)?·?·12·1?)-Histone H4 (1-25)-Gly-Ser-Gly-Ser-Lys(biotinyl) trifluoroacetate salt CAS 2022956-65-4
| CAS No. | 2022956-65-4 |
| Molecular Formula | C141H243N53O43S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(Lys(Ac)?·?·12·1?)-Histone H4 (1-25)-Gly-Ser-Gly-Ser-Lys(biotinyl) trifluoroacetate salt (CAS 2022956-65-4), molecular formula C141H243N53O43SC2HF3O2 and molecular weight 3514.90 g/mol, is a CATO reference standard with documented purity and traceability.
(Lys(Ac)?·?·12·1?)-Histone H4 (1-25)-Gly-Ser-Gly-Ser-Lys(biotinyl) trifluoroacetate salt (C141H243N53O43SC2HF3O2) 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. 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.
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 | C141H243N53O43S C2HF3O2 |
| Molecular Weight | 3514.90 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) | 47.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 53 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Benzo(b)fluoranthene-d12 (CAS 93951-98-5)
- 6-Methyl-2,3-dihydro-1,4-methanoquinoxaline (CAS 411213-74-6)
- 1,5,9-Triazacyclotridecane trihydrobromide (CAS 74676-52-1)
- N-(2-Methyl-5-nitrophenyl)-4-(3-pyridinyl)-2-thiazolamineHydrobromide (CAS 1143459-81-7)
- 3-Amino-2-(2-(trifluoromethoxy)benzyl)propanoic acid (CAS 910443-92-4)
- 4-chloro-6-fluoro-1H-indole-2-carboxylic acid (CAS 383133-62-8)
- N-Allyl-4-methylbenzenesulfonamide (CAS 50487-71-3)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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