9,9-(1,4-Phenylene)bis-9H-Carbazole CAS 19287-68-4
| CAS No. | 19287-68-4 |
| Molecular Formula | C30H20N2 |
| Molecular Weight | 408.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 9,9-(1,4-Phenylene)bis-9H-Carbazole (C30H20N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 408.49 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 9,9-(1,4-Phenylene)bis-9H-Carbazole (CAS 19287-68-4), a certified reference material (molecular formula C30H20N2, MW 408.49 g/mol) for analytical method development and quality control.
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 | C30H20N2 |
| Molecular Weight | 408.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
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- 2,2'-(1,2-Phenylene)bis(N,N-dimethylbenzo[d]oxazol-6-amine) (CAS 920491-91-4)
- 2,2'-(1,3-Phenylene)bis(1H-benzo[d]imidazole-6-carboxylic acid) (CAS 70553-62-7)
- 2,2'-(1,4-Phenylene)bis(quinoline-4-carboxylic acid) (CAS 314022-35-0)
- 4,4'-(5,5'-(1,4-Phenylene)bis(1,3,4-oxadiazole-5,2-diyl))dianiline (CAS 22915-83-9)
- 1,1'-(1,4-Phenylene)bis(3-hexylthiourea) (CAS 77006-71-4)
- ((((4-Methyl-1,3-phenylene)bis(azanediyl))bis(carbonyl))bis(oxy))bis(propane-2,1-diyl) diacrylate (CAS 52723-96-3)
Recommended Standards
- (4S,4'S)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-phenyloxazole] (CAS 188780-32-7)
- (2R,3R,4S,5R)-2-(2-Decyl-6-hydroxy-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 88868-66-0)
- Desoxidodidrovaltrate (CAS 18296-46-3)
- (4R,4'R)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-phenyloxazole] (CAS 2757082-27-0)
- methyl 5-[(4-bromophenoxy)methyl]-2-furoate (CAS 402771-33-9)
- Methyl 1-ethyl-3-formyl-1H-indole-4-carboxylate (CAS 1019111-45-5)
- 2-Methyl-1-hepten-3-ol (CAS 13019-19-7)
- (Nle4,D-Phe7)-α-MSH (CAS 75921-69-6)
- 4-Methyl-1H-pyrazole-5-carboxylic acid (CAS 1358752-83-6)
- N-(6-(Trifluoromethyl)pyridin-2-yl)acetamide (CAS 1291487-27-8)
- 1-[4-(4-Amino-2-trifluoromethylphenyl)piperazin-1-yl]ethanone (CAS 914348-88-2)
- 3-(5-(Chloromethyl)-1,2,4-oxadiazol-3-yl)-N-cyclopropylbenzamide (CAS 1119452-08-2)
- 2-Cyclopropyl-3-(1H-imidazol-1-yl)-2H-chromene-6-carboxylic acid (CAS 89781-98-6)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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