| CAS No. | 12118-97-7 |
| Molecular Formula | C33H19ClN8Si |
| Molecular Weight | 591.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 591.10 g/mol gives 19-Chloro-19-methyl-19H-6,11-(azeno)-17,21-(azeno[1]episoindoloazeno)benzo[7,8][1,3,5,10]tetraaza[2]silacycloundecino[4,3-a:11,1-a']diisoindole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 19-Chloro-19-methyl-19H-6,11-(azeno)-17,21-(azeno[1]episoindoloazeno)benzo[7,8][1,3,5,10]tetraaza[2]silacycloundecino[4,3-a:11,1-a']diisoindole (CAS 12118-97-7), a certified reference material (molecular formula C33H19ClN8Si, MW 591.10 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 19-Chloro-19-methyl-19H-6,11-(azeno)-17,21-(azeno[1]episoindoloazeno)benzo[7,8][1,3,5,10]tetraaza[2]silacycloundecino[4,3-a:11,1-a']diisoindole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 591.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
As a certified reference material (CRM), 19-Chloro-19-methyl-19H-6,11-(azeno)-17,21-(azeno[1]episoindoloazeno)benzo[7,8][1,3,5,10]tetraaza[2]silacycloundecino[4,3-a:11,1-a']diisoindole 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.
| Molecular Formula | C33H19ClN8Si |
| Molecular Weight | 591.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 8 |