4-Amino-2,5,7-trichloro-9H-fluoren-9-ol CAS 37558-70-6
| CAS No. | 37558-70-6 |
| Molecular Formula | C13H8Cl3NO |
| Molecular Weight | 300.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H8Cl3NO, 4-Amino-2,5,7-trichloro-9H-fluoren-9-ol contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 300.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 4-Amino-2,5,7-trichloro-9H-fluoren-9-ol (CAS 37558-70-6), a certified reference material (molecular formula C13H8Cl3NO, MW 300.57 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H8Cl3NO |
| Molecular Weight | 300.57 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 |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3-Amino-2-benzoyl-4-cyclohexylisoxazol-5(2H)-one (CAS 6940-71-2)
- 2-Methyl-1-butene (CAS 563-46-2)
- 2-((3,4-Dihydroxy-2-(phenylselanyl)butyl)amino)-9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1H-purin-6(9H)-one (CAS 666718-15-6)
- 3-Oxo-1,2-benziodoxole-1(3H)-carbonitrile (CAS 172876-96-9)
- tert-Butyl ((3S,4R)-4-methylpiperidin-3-yl)carbamate (CAS 1821828-53-8)
- 4-Bromo-N,2-dimethylbenzenesulfonamide (CAS 1263274-42-5)
- 3-Bromo-1-(3-fluorophenyl)pyridin-2(1h)-one (CAS 1823325-40-1)
- Cyclopeptide-5 (CAS 197172-76-2)
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