2-Iodo-3-Oxo-4-aza-5α-androst-17 β-carboxylic Acid CAS 140700-63-6
| CAS No. | 140700-63-6 |
| Molecular Formula | C19H28INO3 |
| Molecular Weight | 445.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Iodo-3-Oxo-4-aza-5α-androst-17 β-carboxylic Acid (CAS 140700-63-6), molecular formula C19H28INO3 and molecular weight 445.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Iodo-3-Oxo-4-aza-5α-androst-17 β-carboxylic Acid (C19H28INO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
As a certified reference material (CRM), 2-Iodo-3-Oxo-4-aza-5α-androst-17 β-carboxylic Acid 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 | C19H28INO3 |
| Molecular Weight | 445.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3,5-Dichloro-N-[3-cyano-4-(4-methylbenzenesulfonyl)phenyl]benzamide (CAS 320421-33-8)
- Sodium 4-((2-(4-nitrophenyl)hydrazono)methyl)benzene-1,3-disulfonate (CAS 193149-77-8)
- 4-Bromo-2-(2-(pyrrolidin-1-yl)ethoxy)aniline (CAS 1161833-90-4)
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- 2-Methyl-10-phenyl-2,3-dihydroimidazo[2,1-b]quinazolin-5(10H)-one (CAS 57247-52-6)
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- (E)-2-(2-aminostyryl)-5-methylquinolin-8-ol (CAS 361158-05-6)
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