N-(1,3-Dichloro-7-nitro-9H-fluoren-2-yl)acetamide CAS 899-87-6
| CAS No. | 899-87-6 |
| Molecular Formula | C15H10Cl2N2O3 |
| Molecular Weight | 337.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, N-(1,3-Dichloro-7-nitro-9H-fluoren-2-yl)acetamide (C15H10Cl2N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 337.16 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
N-(1,3-Dichloro-7-nitro-9H-fluoren-2-yl)acetamide (CAS 899-87-6), molecular formula C15H10Cl2N2O3 and molecular weight 337.16 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C15H10Cl2N2O3 |
| Molecular Weight | 337.16 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 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- Edaravone Impurity 21 (CAS 5393-61-3)
- 2-{2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl}ethane-1-sulfonyl fluoride (CAS 885527-09-3)
- N1-[[2-(Dicyclohexylphosphino)phenyl]methyl]-N2-(2,4,6-trimethylphenyl)-1,2-ethanediamine (CAS 1450877-16-3)
- (S)-1-(1-Chloroethyl)-3-nitrobenzene (CAS 2137077-91-7)
- 2-Methyl-1,3-benzoxazole-5-carbonyl chloride (CAS 444777-18-8)
- Peptide T (CAS 106362-32-7)
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