9H-carbazole-1-carbaldehyde CAS 1903-94-2
| CAS No. | 1903-94-2 |
| Molecular Formula | C13H9NO |
| Molecular Weight | 195.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 9H-carbazole-1-carbaldehyde (C13H9NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 195.22 g/mol, it falls into the medium-molecular-weight range. 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).
9H-carbazole-1-carbaldehyde (CAS 1903-94-2), molecular formula C13H9NO and molecular weight 195.22 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), 9H-carbazole-1-carbaldehyde 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 | C13H9NO |
| Molecular Weight | 195.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related H Standards
- 9H-Carbazole-2-carbaldehyde, 97% (CAS 99585-18-9)
- 9H-Carbazole-3-carbaldehyde (CAS 51761-07-0)
- 9H-Carbazole-4-carbaldehyde (CAS 99585-19-0)
- 9H-Carbazole-9-carbaldehyde (CAS 39027-95-7)
- 1H-Carbazole-1,4(9H)-dione (CAS 70377-05-8)
- 9H-Carbazole-1,8-diamine (CAS 117110-85-7)
- 9H-carbazole-1,6-diamine (CAS 91396-84-8)
- 9H-carbazole-2,7-diamine (CAS 6402-13-7)
Recommended Standards
- Ethyl 5-amino-6-isopropylpyrimidine-4-carboxylate (CAS 1889268-20-5)
- 5,6-Dihydroindeno[6,7,1-cde]indol-2(1H)-one (CAS 19047-28-0)
- tert-Butyl 5-aminopyrimidine-2-carboxylate (CAS 1888307-94-5)
- 2-Phenyl-2H-benzo[d][1,2,3]triazole (CAS 1916-72-9)
- N-(Piperidin-4-ylmethyl)cyclopropanesulfonamide (CAS 1089340-61-3)
- 5-(Cyclopropylmethoxy)-2-fluoropyridine (CAS 213765-91-4)
- 2-Phenyl-2-{[4-(propan-2-yl)phenyl]sulfanyl}acetic acid (CAS 938287-63-9)
- 4-Chloro-1-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 1256360-42-5)
- 3-((2-Amino-5-methylphenyl)thio)propanoic acid (CAS 1461869-07-7)
- 4-chloro-5-nitro-1H-pyrrole-2-carboxylic acid (CAS 1118787-10-2)
- 5-Phenylbenzo[b]thiophene (CAS 107411-26-7)
- (2R,3S,4S,5R)-2-(2-Chloro-6-((3-iodobenzyl)amino)-9H-purin-9-yl)-4-fluoro-5-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 551929-69-2)
- 4-Amino-3-chloro-5-(trifluoromethyl)benzoyl chloride (CAS 63498-15-7)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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