| CAS No. | 244-87-1 |
| Molecular Formula | C12H9P |
| Molecular Weight | 184.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 184.17 g/mol gives 5H-Benzo[b]phosphindole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5H-Benzo[b]phosphindole (CAS 244-87-1), a certified reference material (molecular formula C12H9P, MW 184.17 g/mol) for analytical method development and quality control.
Owing to organophosphorus functionality, an aromatic ring system, 5H-Benzo[b]phosphindole is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 184.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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.
| Molecular Formula | C12H9P |
| Molecular Weight | 184.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |