(3S,5R,7S,10S,13R,17S)-17-Acetyl-3,7-dihydroxy-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,12,13,16,17-decahydro-1H-cyclopenta[a]phenanthrene-11,15(10H,14H)-dione CAS 97653-92-4
| CAS No. | 97653-92-4 |
| Molecular Formula | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3S,5R,7S,10S,13R,17S)-17-Acetyl-3,7-dihydroxy-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,12,13,16,17-decahydro-1H-cyclopenta[a]phenanthrene-11,15(10H,14H)-dione (CAS 97653-92-4), molecular formula C24H34O5 and molecular weight 402.52 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3S,5R,7S,10S,13R,17S)-17-Acetyl-3,7-dihydroxy-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,12,13,16,17-decahydro-1H-cyclopenta[a]phenanthrene-11,15(10H,14H)-dione (C24H34O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 402.52 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).
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 | C24H34O5 |
| Molecular Weight | 402.52 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Recommended Standards
- (2R,3S,4S,5S)-3,5-Dimethyl-1-(benzyloxy)-8-(4-methoxyphenoxy)-2,4-octanediol (CAS 276690-16-5)
- (3β,17β)-3,17-Bis(acetyloxy)-17-methylandrost-5-en-7-one (CAS 37038-00-9)
- 15-epi Bimatoprost methyl ester (CAS 122675-28-9)
- 1,2,3-Tripentyl 2-hydroxypropane-1,2,3-tricarboxylate (CAS 70289-34-8)
- 6-(Pyrrolidin-2-yl)nicotinic acid (CAS 1270356-08-5)
- 1-(1-Bromo-2,2,2-trifluoroethyl)-3,5-dichlorobenzene (CAS 1416979-46-8)
- N-(5-fluoro-2-methylphenyl)azetidine-3-carboxamide (CAS 1829527-42-5)
- Methyl 6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 942227-34-1)
- 4-((4-Butoxybenzoyl)oxy)phenyl (4-butoxyphenyl) oxalate (CAS 108802-34-2)
- 5-Amino-2-cyclopropyl-1,3-oxazole-4-carbonitrile (CAS 196411-04-8)
- 4,4-Difluoro-2-methylbutanoic acid (CAS 1010422-68-0)
- 6,6-Dimethyl-3-(morpholine-4-carbonyl)-4,5,6,7-tetrahydro-1-benzothiophen-2-amine (CAS 1384594-76-6)
- H-Tyr-Gly-Arg-Phe-Ser-OH·HCl (CAS 286458-87-5)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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