11-Ketotestosterone CAS 53187-98-7
| CAS No. | 53187-98-7 |
| Molecular Formula | C19H26O3 |
| Molecular Weight | 302.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
11-Ketotestosterone (CAS 53187-98-7) is a high-purity analytical reference standard with the molecular formula C19H26O3 and a molecular weight of 302.41 g/mol.
Based on its molecular formula C19H26O3, 11-Ketotestosterone contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 302.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 11-Ketotestosterone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H26O3 |
| Molecular Weight | 302.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Ketotestosterone Standards
Recommended Standards
- 11-Beta-hydroxyandrostenedione (CAS 382-44-5)
- 2-Methoxyestradiol (CAS 362-07-2)
- Emedastine (CAS 87233-61-2)
- 19-Hydroxy-4-androstene-3,17-dione (CAS 510-64-5)
- Methyl 3-methyloxolane-3-carboxylate (CAS 74785-96-9)
- 2-Bromo-1-(2-nitrobenzo[d]oxazol-4-yl)ethanone (CAS 1804216-72-5)
- 2-Amino-5-(difluoromethyl)-6-(hydroxymethyl)nicotinonitrile (CAS 1806829-77-5)
- 8-Fluoro-5-methoxy-1,2,3,4-tetrahydronaphthalen-1-one (CAS 49800-59-1)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(3,5-dichlorophenyl)propanoic acid (CAS 1260605-95-5)
- N-(9-((4AR,6R,7R,7aS)-2,7-dihydroxy-2-oxidotetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-6-yl)-9H-purin-6-yl)benzamide (CAS 30275-80-0)
- N-(2,4-dichlorophenyl)-2-(N-(3-(trifluoromethyl)phenyl)phenylsulfonamido)acetamide (CAS 337922-40-4)
- (S)-2-((S)-2-((tert-Butoxycarbonyl)amino)propanamido)-3-methylbutanoic acid (CAS 60209-59-8)
- Calcitriol Impurity 17 (CAS 1883417-56-8)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
Why CATO?
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