J81 CAS 2257421-84-2
| CAS No. | 2257421-84-2 |
| Molecular Formula | C68H91F2N3O2S4Si2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies J81 (CAS 2257421-84-2), a certified reference material (molecular formula C68H91F2N3O2S4Si2N, MW 1218.91 g/mol) for analytical method development and quality control.
Structurally, J81 (C68H91F2N3O2S4Si2N) 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 24.5, corresponding to approximately 24 ring(s) or double-bond equivalent(s). With a molecular weight of 1218.91 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.
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 | C68H91F2N3O2S4Si2 N |
| Molecular Weight | 1218.91 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) | 24.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 4 |
Recommended Standards
- 3-Amino-1-(2-(3-hydroxypyrrolidin-1-yl)ethyl)pyridin-2(1H)-one (CAS 2171110-45-3)
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- Fentanyl Impurity 5 (CAS 51357-96-1)
- LFM-A13 (CAS 244240-24-2)
- 2-(Difluoromethyl)-6-methoxypyridine-4-sulfonamide (CAS 1804689-32-4)
- 2-(2-(4-Hydroxypiperidin-1-yl)-1H-benzo[d]imidazol-1-yl)nicotinonitrile (CAS 1314356-29-0)
- Testosterone Impurity 24 (CAS CATO-C4X-132624)
- rel-all-trans 5,8-Epoxy Retinoic Acid (CAS 129520-10-1)
- 6,6'-Dimethoxy-[1,1'-binaphthalene]-2,2'-diol (CAS 145372-06-1)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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