1H-Fluorene CAS 244-36-0
| CAS No. | 244-36-0 |
| Molecular Formula | C21H27NO6S |
| Molecular Weight | 421.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1H-Fluorene 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.
CATO supplies 1H-Fluorene (CAS 244-36-0), a certified reference material (molecular formula C21H27NO6S, MW 421.51 g/mol) for analytical method development and quality control.
The molecular framework of 1H-Fluorene (C21H27NO6S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H27NO6S |
| Molecular Weight | 421.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related H Standards
- 9H-Fluorene-2-carbonitrile, 7-bromo-9,9-diphenyl- (CAS 1539314-80-1)
- 4,4'-(9H-Fluorene-9,9-diyl)bis(2,6-dimethylphenol) (CAS 80850-00-6)
- 2,2'-((9H-Fluorene-2,7-disulfonyl)bis(azanediyl))diacetic acid (CAS 303059-37-2)
- 9H-Fluorene, 3-bromo-9,9-diphenyl- (CAS 1547491-70-2)
- 6,6'-(9H-Fluorene-9,9-diyl)bis(naphthalen-2-ol) (CAS 934557-66-1)
- 4,4'-(9H-Fluorene-9,9-diyl)bis(2-methylphenol) (CAS 88938-12-9)
- 2,2'-(((9H-Fluorene-9,9-diyl)bis(2-methyl-4,1-phenylene))bis(oxy))diethanol (CAS 156326-34-0)
- 1,1'-(9H-Fluorene-2,7-diyl)bis(4-chlorobutan-1-one) (CAS 34927-52-1)
Recommended Standards
- 1-((11bR)-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)azepane (CAS 804567-17-7)
- 2-((3-Cyano-4,6-diphenylpyridin-2-yl)thio)-N-phenylacetamide (CAS 332040-65-0)
- (E)-1-butyl-2-((2-fluorobenzylidene)amino)-4,5-diphenyl-1H-pyrrole-3-carbonitrile (CAS 478032-72-3)
- 3-(Benzo[d]thiazol-2-yl)-7-hydroxy-2-methyl-8-((4-methylpiperazin-1-yl)methyl)-4H-chromen-4-one (CAS 308297-79-2)
- N-(6-Ethoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)pivalamide (CAS 865161-93-9)
- (E)-1-cyclopropyl-3-((dimethylamino)methylene)piperidine-2,4-dione (CAS 2451966-52-0)
- Dimethyl-(3-phenyl-5-trifluoromethyl-pyridin-2-yl)-amine (CAS 1311279-22-7)
- 2-Chloro-N-isopropyl-N-(4-methoxybenzyl)acetamide (CAS 1175952-59-6)
- (1E)-N-(2,4-Difluorophenyl)-1-[2-(ethylsulfanyl)-1-methyl-1H-imidazol-5-yl]methanimine (CAS 303986-83-6)
- 3-Nitro-2,3-dihydro-1H-imidazo[1,2-b]pyrazole (CAS 148777-85-9)
- Norepinephrine Impurity 133 (CAS 872266-28-9)
- 2-ethyl-4-isocyanato-benzoate 2-ethyl-4-isocyanatobenzoate 30806-83-8 A820631 (CAS 30806-83-8)
- rac-(3’aR,6’aS)-5,5-dimethyl-hexahydro-1’H-spiro[1,3-dioxane-2,2’-pentalene]-5’-ol (CAS 208347-37-9)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com