1,4,5,8-Tetramethyl-9H-carbazole CAS 20355-42-4
| CAS No. | 20355-42-4 |
| Molecular Formula | C16H17N |
| Molecular Weight | 223.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,4,5,8-Tetramethyl-9H-carbazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1,4,5,8-Tetramethyl-9H-carbazole (CAS 20355-42-4), a certified reference material (molecular formula C16H17N, MW 223.31 g/mol) for analytical method development and quality control.
The molecular framework of 1,4,5,8-Tetramethyl-9H-carbazole (C16H17N) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1,4,5,8-Tetramethyl-9H-carbazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H17N |
| Molecular Weight | 223.31 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Tetramethyl Standards
- 1,2,3,4-Tetramethyl-9H-carbazole (CAS 33553-27-4)
- 1,3,6,8-Tetramethyl-9H-carbazole (CAS 6558-85-6)
- 4-((4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)methylene)piperidine (CAS 2365173-84-6)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-amine (CAS 2415547-76-9)
- 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-5-amine (CAS 1423078-48-1)
- 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-3-amine (CAS 1449568-30-2)
- 1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazol-4-amine (CAS 948593-45-1)
- 2-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole (CAS 2710289-95-3)
Recommended Standards
- 1-[3-methoxy-4-(3-methylbutoxy)phenyl]methanamine (CAS 854185-21-0)
- 1-Benzyl-1,2,3,4-tetrahydroquinoline (CAS 21863-32-1)
- 1-(Tert-butylamino)-3-phenoxypropan-2-ol (CAS 64980-40-1)
- 1-Benzyl-3-phenylazetidine (CAS 7215-16-9)
- 1-Phenyl-2,7,10,13,16-pentaoxaoctadecan-18-ol (CAS 2681388-11-2)
- 4-{[1,1'-Biphenyl]-4-carbonyl}-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326809-08-8)
- Pyridine Iodine Monochloride (CAS 6443-90-9)
- N'-(4-((4-Fluorobenzyl)oxy)benzylidene)-2-((3-nitrophenyl)amino)acetohydrazide (CAS 303090-90-6)
- 2-Methylthiazole-4-carbonyl Chloride (CAS 55842-53-0)
- N-(2,5-Difluorobenzyl)-1,4-dimethyl-1H-pyrazol-3-amine hydrochloride (CAS 1856085-35-2)
- Itraconazole Impurity 74 (CAS CATO-C4X-149774)
- 3-Methoxy-N-(4-propoxybenzyl)aniline (CAS 1036543-63-1)
- 2-Methyl-3-phenoxypropanoic acid (CAS 103323-93-9)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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