(H-Cys-pNA)? (Disulfide bond) CAS 34199-07-0
| CAS No. | 34199-07-0 |
| Molecular Formula | C18H20N6O6S2 |
| Molecular Weight | 480.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (H-Cys-pNA)? (Disulfide bond) is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(H-Cys-pNA)? (Disulfide bond) (CAS 34199-07-0) is a high-purity analytical reference standard with the molecular formula C18H20N6O6S2 and a molecular weight of 480.52 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (H-Cys-pNA)? (Disulfide bond) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 480.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), (H-Cys-pNA)? (Disulfide bond) 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 | C18H20N6O6S2 |
| Molecular Weight | 480.52 g/mol |
| Purity | >95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
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