DG051 (free acid) CAS 929916-05-2
| CAS No. | 929916-05-2 |
| Molecular Formula | C21H24ClNO4 |
| Molecular Weight | 389.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
DG051 (free acid) (C21H24ClNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. 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).
DG051 (free acid) (CAS 929916-05-2) is a high-purity analytical reference standard with the molecular formula C21H24ClNO4 and a molecular weight of 389.87 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H24ClNO4 |
| Molecular Weight | 389.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 4FLT4T3WUN 7786-81-4 Nickel sulfate Acunol Nickel sulphate Nickel(II) sulfate (1:1) Sulfuric acid, nickel(2+) salt (1:1) EINECS 232-104-9 HSDB 1114 NCI-C60344 Nickel sulfate(1:1) Nickel(2+) sulfate Nickel(2+) sulfate (1:1) Nickel sulfate (NiSO4) Nickel sulfate (VAN) Nickel(II) sulfate Nickelous sulfate Nickel(2+)sulfate(1:1) NSC 51152 Sulfuric acid nickel(2+) salt Sulfuric acid, nickel(2+)salt Sulphuric acid, nickel(II) salt UNII-4FLT4T3WUN EC 232-104-9 Nickel sulfate [Nickel and nickel compounds] (CAS 7786-81-4)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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