3-[[(4-Fluorophenyl)sulfonyl]methylamino]-1,2,3,4-tetrahydro-9H-carbazole-9-acetic acid CAS 844639-57-2
| CAS No. | 844639-57-2 |
| Molecular Formula | C21H20FN2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[[(4-Fluorophenyl)sulfonyl]methylamino]-1,2,3,4-tetrahydro-9H-carbazole-9-acetic acid (CAS 844639-57-2), molecular formula C21H20FN2O4SNa and molecular weight 438.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-[[(4-Fluorophenyl)sulfonyl]methylamino]-1,2,3,4-tetrahydro-9H-carbazole-9-acetic acid (C21H20FN2O4SNa) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 3-[[(4-Fluorophenyl)sulfonyl]methylamino]-1,2,3,4-tetrahydro-9H-carbazole-9-acetic acid 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 | C21H20FN2O4S Na |
| Molecular Weight | 438.45 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fluorophenyl Standards
- 3-[(3-fluorophenyl)methyl]pyrrolidine (CAS 1000198-80-0)
- 3-(3-Fluorophenyl)-3-oxopropanoic acid (CAS 1000530-96-0)
- Ethyl 1-(4-fluorophenyl)-5-oxo-2,5-dihydro-1H-1,2,4-triazole-3-carboxylate (CAS 1000573-68-1)
- 1000574-26-4 2-(4-Fluorophenyl)-6-methylthio-4H-thiopyran-4-one MFCD09877819 (CAS 1000574-26-4)
- Ethyl 1-(2-fluorophenyl)-5-oxo-2,5-dihydro-1H-1,2,4-triazole-3-carboxylate (CAS 1000575-18-7)
- 100074-04-2 5-(4-Fluorophenyl)-1-pentene MFCD11553774 (CAS 100074-04-2)
- 3-(2-Fluorophenyl)-4-hydroxyfuran-2(5H)-one (CAS 100074-44-0)
- N-[2-(4-fluorophenyl)ethyl]-1H-imidazole-1-carboxamide (CAS 1000931-75-8)
Recommended Standards
- 8-Bromo-2,6-dichloro-9H-purine (CAS 1416372-76-3)
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- 3-[(4-Chlorophenyl)sulfanyl]-2-phenylquinoline (CAS 338391-98-3)
- Deferasirox Impurity 18 (CAS 1395346-29-8)
- Letrozole impurity 01 (CAS 10466-37-2)
- 3-Propyl-3H-purin-6(7H)-one (CAS 327036-87-3)
- N-Benzyl-N-phenyldinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 804567-39-3)
- 1-Allyl-3-nitrobenzene (CAS 123158-61-2)
- 4-(1-Isobutyl-1H-pyrazol-4-yl)piperidine (CAS 1443289-53-9)
- Liraglutide(13-31)TFA Salt (CAS CATO-C4X-19929)
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