4-Chloro-9H-carbazole CAS 3652-88-8
| CAS No. | 3652-88-8 |
| Molecular Formula | C12H8ClN |
| Molecular Weight | 201.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H8ClN, 4-Chloro-9H-carbazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 201.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Chloro-9H-carbazole (CAS 3652-88-8), molecular formula C12H8ClN and molecular weight 201.65 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-9H-carbazole 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.
Physical & Chemical Properties
| Molecular Formula | C12H8ClN |
| Molecular Weight | 201.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2-Chloro-N-methyl-N-[(1-methyl-1H-pyrazol-4-yl)methyl]acetamide (CAS 1006481-34-0)
- 4-Chloro-2-(((2-hydroxyethyl)amino)methyl)phenol (CAS 1038306-17-0)
- 2-Chloro-9H-carbazole (CAS 10537-08-3)
- 1-Chloro-3-fluoro-2-(isothiocyanatomethyl)benzene (CAS 1092350-26-9)
- 5-Chloro-4-ethoxy-2-methoxyaniline (CAS 1098068-10-0)
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- 2-Chloro-5-fluoro-4-methylbenzothiazole (CAS 1188138-85-3)
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Recommended Standards
- 4-Chloro-6-(3-methoxypropylamino)pyrimidine (CAS 941294-46-8)
- 5-Amino-2-(tert-butyl)-4-chloropyridazin-3(2H)-one (CAS 84956-72-9)
- 4-Chloro-5-(diethylamino)pyridazin-3(2H)-one (CAS 941-86-6)
- 5-Butyl-3-methylisoxazole-4-carbonyl chloride (CAS 90415-80-8)
- 4-(Thiophen-3-ylmethyl)thiomorpholine-3-carboxylic acid (CAS 1543487-30-4)
- 2-Bromo-4-cyano-5-fluorobenzoic acid (CAS 1805103-92-7)
- Di-tert-butyl (2-cyano-6-(dimethylphosphoryl)pyridin-3-yl)iminodicarbonate (CAS 2903925-06-2)
- 2-((4-Fluorophenyl)amino)-2-oxoethyl 3-methylthiophene-2-carboxylate (CAS 387854-15-1)
- 2-(Isopentylthio)benzoyl chloride (CAS 91767-36-1)
- 3-(4-Bromophenyl)-2-methylpropanenitrile (CAS 945918-72-9)
- 3-(tert-Butyl) 4-methyl (4S,5R)-5-methyl-1,2,3-oxathiazolidine-3,4-dicarboxylate 2,2-dioxide (CAS 1189196-21-1)
- Bisphenol A (CAS 80-05-7)
- 4-Chloro-5-fluoro-pyridine-3-carbaldehyde (CAS 1060802-34-7)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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