24-Epicastasterone 80736-41-0 BP 214 Castasterone Ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- (9CI) ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- CAS 80736-41-0
| CAS No. | 80736-41-0 |
| Molecular Formula | C28H48O5 |
| Molecular Weight | 464.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
24-Epicastasterone 80736-41-0 BP 214 Castasterone Ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- (9CI) ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- (CAS 80736-41-0), molecular formula C28H48O5 and molecular weight 464.68 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 24-Epicastasterone 80736-41-0 BP 214 Castasterone Ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- (9CI) ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha,22R,23R,24S)- (C28H48O5) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C28H48O5 |
| Molecular Weight | 464.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Recommended Standards
- (2|A,3|A,5|A,22R,23R)-2,3,22,23-Tetrahydroxyergostan-6-one 24-Epicastasterone 24-epi-Castasterone 24R-Epicastasterone 72050-71-6 (CAS 72050-71-6)
- Xylometazoline Impurity 11 (CAS CATO-C4X-178211)
- 4-(Heptyloxy)phenyl 4-(trans-4-pentylcyclohexyl)benzoate (CAS 84601-02-5)
- Xylometazoline Impurity 12 (CAS CATO-C4X-178212)
- 2-[(pyridin-2-yl)carbamoyl]benzoic acid (CAS 19357-10-9)
- 5-Cyclopropoxy-4-methoxy-N,N-dimethylnicotinamide (CAS 1243320-22-0)
- (E)-3-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-N-(2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)vinyl)aniline (CAS 303997-79-7)
- 3-((2-Hydroxyethyl)thio)-6-nitro-2,3-dihydrobenzo[b]thiophene 1,1-dioxide (CAS 175203-70-0)
- Dichotomitin (CAS 88509-91-5)
- 3-Butyryl-5-fluoropyrimidine-2,4(1H,3H)-dione (CAS 94452-21-8)
- 2-((4-(Thiophene-2-sulfonamido)but-2-yn-1-yl)oxy)benzamide (CAS 1448135-86-1)
- (S)-5,6-dibenzyl-2-oxa-8-thia-5-azaspiro[3.4]Octane (CAS 1556097-50-7)
- 4-(2-Methoxyethyl)-5-(4-(morpholinosulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917749-95-2)
- Protein Kinase C? Peptide Substrate (CAS 120253-69-2)
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