1292766-21-2 C26H28O7 Pierreione B W2824 CAS 1292766-21-2
| CAS No. | 1292766-21-2 |
| Molecular Formula | C26H28O7 |
| Molecular Weight | 452.50 g/mol |
| 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.
1292766-21-2 C26H28O7 Pierreione B W2824 (CAS 1292766-21-2), molecular formula C26H28O7 and molecular weight 452.50 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1292766-21-2 C26H28O7 Pierreione B W2824 (C26H28O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 452.50 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C26H28O7 |
| Molecular Weight | 452.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Recommended Standards
- 4H-1-Benzopyran-4-one, 2-(2,4-dihydroxyphenyl)-3,7-dihydroxy-5-methoxy-8-[5-methyl-2-(1-methylethenyl)-4-hexenyl]-, (R)- (CAS 128879-52-7)
- 5，7，3’，4’-Tetrahydroxy-3-methoxy-8，5’-diprenylflavone (CAS 1353676-65-9)
- rel-(2R,4S)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-((tert-butoxycarbonyl)amino)pyrrolidine-2-carboxylic acid (CAS 1253791-18-2)
- (2R,3R,4S,5R,6S)-2-(Acetoxymethyl)-6-((ethoxycarbonothioyl)thio)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 13639-54-8)
- Methyl 5-(3-(trifluoromethyl)phenyl)tetrahydrofuran-2-carboxylate (CAS 1421602-31-4)
- 3-(3,5-Difluorophenyl)pentanedioic acid (CAS 162549-35-1)
- 3-Methoxy-4-(5-methyl-1H-imidazol-1-yl)benzaldehyde (CAS 870837-19-7)
- H-Gly-Gly-Asp-Ala-OH (CAS 103972-83-4)
- (3-Imidazol-1-yl-propyl)-(5-methyl-thiophen-2-ylmethyl)-amine (CAS 799262-41-2)
- 3-Cyclopropoxy-5-isopropoxy-2-isopropylpyridine (CAS 1243398-33-5)
- 3-cyano-1-[3-(trifluoromethyl)benzyl]pyridinium chloride (CAS 217816-42-7)
- 2-Oxo-1-((tetrahydrofuran-2-yl)methyl)-1,2-dihydropyridine-3-carboxylic acid (CAS 954225-52-6)
- Carbidopa Impurity 31 (CAS 28860-96-0)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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