Estriol 16,17-Diacetate CAS 805-26-5
| CAS No. | 805-26-5 |
| Molecular Formula | C22H28O5 |
| Molecular Weight | 372.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Estriol 16,17-Diacetate is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Estriol 16,17-Diacetate (CAS 805-26-5), molecular formula C22H28O5 and molecular weight 372.45 g/mol, is a CATO reference standard with documented purity and traceability.
Estriol 16,17-Diacetate (C22H28O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Estriol 16,17-Diacetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H28O5 |
| Molecular Weight | 372.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Estriol Standards
- Estriol Impurity 19 (CAS CATO-C4X-163719)
- Estriol impurity 23 (CAS 1247-47-8)
- Estriol 3-Sulfate (CAS 481-95-8)
- Estriol Impurity 18 (CAS CATO-C4X-163718)
- Estriol Impurity 14 (CAS 1497406-77-5)
- Estriol 3-Benzyl Ether (CAS 18650-87-8)
- Estriol Impurity 21 (CAS CATO-C4X-163721)
- Estriol 3-Succinate (CAS 47575-61-1)
Recommended Standards
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- 4-(Hydroxymethyl)piperidine-1-carboxamide (CAS 1183956-15-1)
- (3AR,8aS)-2-(5-bromopyridin-2-yl)-3a,8a-dihydro-8H-indeno[1,2-d]oxazole (CAS 2757083-33-1)
- Flunarizine Impurity 18 (CAS 6416-39-3)
- N-(3-amino-2-methylphenyl)tetrahydrofuran-2-carboxamide (CAS 926215-04-5)
- 3-(p-Tolylamino)-2,3-dihydrothiophene 1,1-dioxide (CAS 39565-71-4)
- Methyl N-phenylcarbamate (CAS 2603-10-3)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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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