1,8-Dibromo-3,6-di-tert-butyl-9H-carbazole CAS 625385-37-7
| CAS No. | 625385-37-7 |
| Molecular Formula | C20H23Br2N |
| Molecular Weight | 437.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,8-Dibromo-3,6-di-tert-butyl-9H-carbazole (CAS 625385-37-7), molecular formula C20H23Br2N and molecular weight 437.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,8-Dibromo-3,6-di-tert-butyl-9H-carbazole (C20H23Br2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 437.21 g/mol, it falls into the moderately-high-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).
As a certified reference material (CRM), 1,8-Dibromo-3,6-di-tert-butyl-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 | C20H23Br2N |
| Molecular Weight | 437.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 3,6-Dibromo-9-(2-ethylhexyl)-9H-carbazole (CAS 173063-52-0)
- 2,7-Dibromo-9-(2-ethylhexyl)carbazole (CAS 544436-46-6)
- 2,7-Dibromo-9-octyl-9H-carbazole (CAS 726169-75-1)
- 3,6-Dibromo-9-n-octyl-carbazole (CAS 79554-93-1)
- 2,4-Dibromo-6-[(1E)-({[2-(trifluoromethyl)phenyl]methyl}imino)methyl]phenol (CAS 477848-51-4)
- 2,3-Dibromo-1-(3,4-dichlorophenyl)-3-phenylpropan-1-one (CAS 81394-21-0)
- 4,6-Dibromo-2-(2,4-dichlorophenyl)benzo[d]oxazol-5-amine (CAS 637302-80-8)
- 4,6-Dibromo-2-(3,4-dichlorophenyl)benzo[d]oxazol-5-amine (CAS 637303-13-0)
Recommended Standards
- Methyl 3-(2,6-dichlorophenyl)-5-[(1Z)-1-(dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-1,2-oxazole-4-carboxylate (CAS 338966-51-1)
- Pibrentasvir Impurity 4 (CAS 1292836-20-4)
- Fipronil (CAS 120068-37-3)
- 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin 13C12 (CAS 109719-83-7)
- 4-(Aminomethyl)-N-(1-phenylethyl)oxan-4-amine (CAS 1306605-25-3)
- Homovanillic Acid-d3 (CAS 74495-71-9)
- 1-(4-Chlorophenyl)-2,2,2-trifluoro-N-methylethan-1-amine (CAS 1154312-42-1)
- 6-CHLOROINDOXYL-1,3-DIACETATE (CAS 108761-33-7)
- 1-(4-Fluorophenyl)-2-(piperazin-1-yl)ethan-1-one (CAS 556807-81-9)
- n-Cyclopentyloxane-4-sulfonamide (CAS 1355642-84-0)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
- DBCO-PEG-4-Val-Cit-PAB-PNP (CAS 2226472-28-0)
- (4-Chloro-3-(methylthio)phenyl)boronic acid (CAS 935782-76-6)
- Semaglutide impurity 256 (CAS CATO-C4X-2226256)
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