(1R,2S,3R,5S)-5-Acetyloxy-2-hydroxymethyl-3-tetrahydropyranyloxy-α-(phenylseleno)cyclopentaneheptanoic Acid Methyl Ester (Mixture of Diastereomers) CAS 61302-47-4
| CAS No. | 61302-47-4 |
| Molecular Formula | C21H36O7 |
| Molecular Weight | 400.51 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.
(1R,2S,3R,5S)-5-Acetyloxy-2-hydroxymethyl-3-tetrahydropyranyloxy-α-(phenylseleno)cyclopentaneheptanoic Acid Methyl Ester (Mixture of Diastereomers) (CAS 61302-47-4), molecular formula C21H36O7 and molecular weight 400.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H36O7, (1R,2S,3R,5S)-5-Acetyloxy-2-hydroxymethyl-3-tetrahydropyranyloxy-α-(phenylseleno)cyclopentaneheptanoic Acid Methyl Ester (Mixture of Diastereomers) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 400.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H36O7 |
| Molecular Weight | 400.51 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
Recommended Standards
- (1R,2R,3S,4S)-Methyl 3-((S)-1-acetamido-2-ethylbutyl)-4-((tert-butoxycarbonyl)amino)-2-hydroxycyclopentanecarboxylate(relative) (CAS 229614-10-2)
- (2R,3R,5S)-3,5-Dimethyl-1-benzyloxy-2-hydroxy-8-(4-methoxyphenoxy)-4-octanone (CAS 276690-15-4)
- 17-(Acetyloxy)-6-(hydroxymethyl)-pregna-4,6-diene-3,20-dione (CAS 1867-41-0)
- (4S,4′S)-2,2′-(1,8-Anthracenediyl)bis[4,5-dihydro-4-(1-methylethyl)oxazole] (CAS 756531-15-4)
- 2-(Difluoromethyl)-3-methoxypyridine-4-carboxylic acid (CAS 1805307-71-4)
- Benzo[b]thiophene-2-carboxamide (CAS 6314-42-7)
- 1-Benzyl-4-(2-chlorophenyl)pyrrolidine-3-carboxylic acid (CAS 939757-57-0)
- JK-P3 (CAS 942655-44-9)
- 1-(3-Bromopropoxy)-2-methylbenzene (CAS 50912-60-2)
- Desogestrel EP Impurity E/Desogestrel USP RC B (CAS 70805-85-5)
- (2S)-2-[(4R)-4,5-Dihydro-4-phenyl-2-oxazolyl]-1-(diphenylphosphino)piperidine (CAS 2757084-52-7)
- Methyl 5-Hydroxy-6-methoxynicotinate (CAS 166742-16-1)
- Thiol-PEG6-alcohol (CAS 194425-46-2)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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