2,5-Difluoro-4-nitroanisole CAS 66684-63-7
| CAS No. | 66684-63-7 |
| Molecular Formula | C7H5F2NO3 |
| Molecular Weight | 189.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,5-Difluoro-4-nitroanisole (CAS 66684-63-7), a certified reference material (molecular formula C7H5F2NO3, MW 189.12 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H5F2NO3, 2,5-Difluoro-4-nitroanisole contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2,5-Difluoro-4-nitroanisole 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 | C7H5F2NO3 |
| Molecular Weight | 189.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 3,5-Difluoro-4-nitrobenzyl Alcohol (CAS 1123172-89-3)
- (2,5-Difluoro-4-nitrophenyl)methanol (CAS 1160474-68-9)
- 1,2-Difluoro-3-methoxy-5-nitrobenzene (CAS 1235492-43-9)
- 2,6-Difluoro-4-nitrobenzyl alcohol (CAS 1260811-86-6)
- (3,5-Difluoro-2-nitrophenyl)methanol (CAS 1378491-35-0)
- 1,3-Difluoro-2-methoxy-4-nitrobenzene (CAS 1393179-73-1)
- 1,5-Difluoro-2-methoxy-4-nitrobenzene (CAS 179011-39-3)
- (2,5-Difluoro-3-nitrophenyl)methanol (CAS 1803730-48-4)
Recommended Standards
- 2,4-Dinitrofluorobenzene-d (CAS 228719-18-4)
- 2,6-Difluoro-4-nitroanisole (CAS 392-25-6)
- 2,4-Difluoro-5-nitrobenzyl Alcohol (CAS 935287-88-0)
- 3,5-Difluoro-2-nitroanisole (CAS 66684-61-5)
- Simotaxel (CAS 791635-59-1)
- 2-Amino-4-oxo-3,4-dihydropteridine-7-carboxylic acid (CAS 31010-60-3)
- Ethyl 2-({5-[3-(trifluoromethyl)phenyl]pyrimidin-2-yl}sulfanyl)propanoate (CAS 339101-35-8)
- 2-Amino-5-cyclopropylnicotinonitrile (CAS 1211582-73-8)
- 4-methyl-1,3-benzothiazole-2-carboxylic acid (CAS 3507-47-9)
- N,N'-(Disulfanediylbis(ethane-2,1-diyl))bis(3-aminopropanamide) (CAS 646-08-2)
- 34272-66-7 5-Thiazoleacetic acid, 2-methyl-4-phenyl- 4-27-00-04094 (Beilstein Handbook Reference) BRN 0184265 2-Methyl-4-phenyl-5-thiazoleacetic acid (CAS 34272-66-7)
- 3-Bromo-5-chloro-2-methylpyrazolo[1,5-a]pyrimidine (CAS 1785626-91-6)
- 3-(4-Amino-phenoxy)-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 862874-75-7)
- Liraglutide Impurity 13 TFA Salt (CAS CATO-C4X-199213)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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