2,4,7-Trichloro-9H-fluoren-9-one CAS 1785-27-9
| CAS No. | 1785-27-9 |
| Molecular Formula | C13H5Cl3O |
| Molecular Weight | 283.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4,7-Trichloro-9H-fluoren-9-one is closely related to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2,4,7-Trichloro-9H-fluoren-9-one (CAS 1785-27-9), a certified reference material (molecular formula C13H5Cl3O, MW 283.54 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H5Cl3O, 2,4,7-Trichloro-9H-fluoren-9-one contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 283.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 2,4,7-Trichloro-9H-fluoren-9-one 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 | C13H5Cl3O |
| Molecular Weight | 283.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 4-Chloro-5-(3,4-dichlorophenyl)nicotinonitrile (CAS 1707371-90-1)
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- Nonadecan-1-amine (CAS 14130-05-3)
- 3-Amino-N,N-dimethyl-3-phenylpropanamide (CAS 180264-38-4)
- 3 -O-tert-Butyl-2-deoxymugineic Acid tert-Butyl Diethyl Ester (CAS 958350-41-9)
- Benzopyrene Related Compound 6 ((3aS,4R,9bR)-4-(6-Bromo-1,3-Benzodioxol-5-yl)-3a,4,5,9b-Tetrahydro-3H-Cyclopenta-[c]-Qui (CAS 161002-05-6)
- 1-(2-Fluorophenyl)-4-(3-nitropyridin-2-yl)piperazine (CAS 400088-84-8)
- S-1H-Benzo[d]imidazol-2-yl 2-((2-methoxyphenyl)amino)ethanethioate (CAS 83408-81-5)
- 2-(Difluoromethoxy)-3-nitro-5-(pyridin-4-yl)pyridine (CAS 1214390-87-0)
- (2-Amino-ethyl)-urea hydrochloride (CAS 858001-69-1)
- 2-(Bromomethyl)-2-methyl-1,3-dioxolane (CAS 33278-96-5)
- 6-chloro-2-fluoro-9-methyl-9H-purine (CAS 344891-56-1)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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