12,12-dimethyl-11,12-dihydroindeno[2,1-a]carbazole CAS 1329054-41-2
| CAS No. | 1329054-41-2 |
| Molecular Formula | C21H17N |
| Molecular Weight | 283.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 283.37 g/mol gives 12,12-dimethyl-11,12-dihydroindeno[2,1-a]carbazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
12,12-dimethyl-11,12-dihydroindeno[2,1-a]carbazole (CAS 1329054-41-2), molecular formula C21H17N and molecular weight 283.37 g/mol, is a CATO reference standard with documented purity and traceability.
12,12-dimethyl-11,12-dihydroindeno[2,1-a]carbazole (C21H17N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C21H17N |
| Molecular Weight | 283.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related dimethyl Standards
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Recommended Standards
- tert-Butyl 2-oxo-1,8,11-triazaspiro[5.6]dodecane-8-carboxylate (CAS 1330764-03-8)
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- 2-(4-Benzylpiperazin-1-yl)-6-methylpyrimidin-4-amine (CAS 1333960-57-8)
- Tert-butyl 2-oxo-3-(piperidin-4-yl)tetrahydropyrimidine-1(2H)-carboxylate (CAS 1312186-07-4)
- L-Alanyl-L-alanyl-N-(1-phosphonoethyl)-(S)-L-alaninamide (CAS 60778-33-8)
- 4-(3-methyl-1H-pyrazol-1-yl)aniline,2HCl (CAS 1431966-61-8)
- 1-(2-Bromobenzyl)-5-methyl-1h-pyrazol-3-amine (CAS 1035223-67-6)
- (R)-Methyl 3-amino-3-(3-bromophenyl)propanoate hydrochloride (CAS 845909-00-4)
- 2-(azidomethyl)-1,3-thiazole (CAS 171268-82-9)
- 1-methyl-1H-pyrrole-2-carbohydrazide (CAS 113398-02-0)
- Eltrombopag Impurity 123 (CAS CATO-C4X-1198123)
- n-(4-Aminocyclohexyl)cyclohexanecarboxamide (CAS 1589378-80-2)
- 1-(3-Fluorophenyl)-4,5,6,7-tetrahydro-1H-indazol-4-amine (CAS 1242340-02-8)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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