3,5-Difluoro-2-nitrobenzoic Acid CAS 331765-71-0
| CAS No. | 331765-71-0 |
| Molecular Formula | C7H3F2NO4 |
| Molecular Weight | 203.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 203.10 g/mol gives 3,5-Difluoro-2-nitrobenzoic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3,5-Difluoro-2-nitrobenzoic Acid (CAS 331765-71-0), a certified reference material (molecular formula C7H3F2NO4, MW 203.10 g/mol) for analytical method development and quality control.
Structurally, 3,5-Difluoro-2-nitrobenzoic Acid (C7H3F2NO4) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 203.10 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 3,5-Difluoro-2-nitrobenzoic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H3F2NO4 |
| Molecular Weight | 203.10 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 3,4-Difluoro-5-nitrobenzoic acid (CAS 1121583-51-4)
- 3,5-Difluoro-4-nitrobenzoic Acid (CAS 1131580-60-3)
- 2,5-Difluoro-4-nitrobenzoic Acid (CAS 116465-48-6)
- 2,3-Difluoro-6-nitrobenzoic acid (CAS 1220508-52-0)
- 2,4-Difluoro-3-nitrobenzoic acid (CAS 1425174-31-7)
- 2,2-Difluoro-4-nitrobenzo[d][1,3]dioxole (CAS 148928-60-3)
- 2,4-Difluoro-5-nitrobenzoic Acid (CAS 153775-33-8)
- 2,2-Difluoro-[1,3]dioxolo[4,5-c]pyridine-6-carboxylic acid (CAS 1546229-03-1)
Recommended Standards
- 2-Bromo-5-cyclopropylthiophene (CAS 29481-27-4)
- 4,5-Difluoro-2-nitrobenzoic Acid (CAS 20372-63-8)
- 2-Bromo-3-cyclopropylthiophene (CAS 29481-32-1)
- 5-Bromo-2-methylbenzene-1-thiol (CAS 69321-55-7)
- 3-Chloro-N-(5-(ethylthio)-1,3,4-thiadiazol-2-yl)propanamide (CAS 352688-67-6)
- 2-(2,5-Dimethylphenoxy)acetohydrazide (CAS 103896-91-9)
- Fluorouracil Impurity 12 (CAS 155-16-8)
- BIX 01294 TriHCl (CAS 1392399-03-9)
- Dimethylpolysilane (CAS 28883-63-8)
- 2-(4-tert-Butylphenyl)-5-{[(4-methylphenyl)methyl]sulfanyl}-1,3,4-oxadiazole (CAS 477862-09-2)
- 5-Acetamido-2-aminobenzenesulfonic acid (CAS 96-78-6)
- 2-Chloro-5,6-dihydrobenzo[h]quinazolin-4-amine (CAS 1823516-51-3)
- 1-(3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)ethan-1-one (CAS 478065-94-0)
- Custom peptides (CAS CATO-CPTD788509)
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