1-Chloro-2,5-difluoro-4-propoxybenzene CAS 1881331-57-2
| CAS No. | 1881331-57-2 |
| Molecular Formula | C9H9ClF2O |
| Molecular Weight | 206.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Chloro-2,5-difluoro-4-propoxybenzene (C9H9ClF2O) contains a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 206.62 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 1-Chloro-2,5-difluoro-4-propoxybenzene (CAS 1881331-57-2), a certified reference material (molecular formula C9H9ClF2O, MW 206.62 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 | C9H9ClF2O |
| Molecular Weight | 206.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 1-CHloro-2,4-difluoro-5-(propan-2-yloxy)benzene (CAS 1394934-12-3)
- 5-CHloro-1,3-difluoro-2-(propan-2-yloxy)benzene (CAS 1395038-96-6)
- 2-[Chloro(difluoro)methoxy]-1,3-dimethyl-benzene (CAS 1404194-47-3)
- 2-[Chloro(difluoro)methoxy]-1,4-dimethyl-benzene (CAS 1404195-03-4)
- 6-Chloro-1,1-difluorospiro[2.5]Oct-5-ene-5-carbaldehyde (CAS 1513853-82-1)
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Recommended Standards
- 1-Chloro-4-ethoxy-3,5-difluoro-2-methylbenzene (CAS 1881321-95-4)
- 1-Chloro-2,4-difluoro-5-propoxybenzene (CAS 1881332-77-9)
- 5-Chloro-1,3-difluoro-2-propoxybenzene (CAS 1881294-06-9)
- 1-Chloro-2,4-difluoro-3-(propan-2-yloxy)benzene (CAS 1881332-78-0)
- 2,3,4-Trifluoro-5-iodobenzoic acid (CAS 203916-59-0)
- (2,4-Dimethoxyphenyl)(phenyl)methanamine (CAS 106864-38-4)
- D-mannose 6-phosphate disodium salt (CAS 33068-18-7)
- Ethyl 5-bromo-3-phenylisoxazole-4-carboxylate (CAS 1245031-62-2)
- 2-(4-Chloro-3-(difluoromethyl)-6-methylpyridin-2-yl)acetonitrile (CAS 1804664-51-4)
- 2-((3-(Pyridin-3-yl)-1H-1,2,4-triazol-5-yl)thio)-N-(2,4,6-trichlorophenyl)acetamide (CAS 332157-93-4)
- Trelagliptin Impurity 34 (CAS 1917324-13-0)
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- 1-([1,1'-Biphenyl]-4-yl)propan-1-amine (CAS 1021048-45-2)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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