4,5-Difluoro-2-methylbenzoic Acid CAS 183237-86-7
| CAS No. | 183237-86-7 |
| Molecular Formula | C8H6F2O2 |
| Molecular Weight | 172.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-Difluoro-2-methylbenzoic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,5-Difluoro-2-methylbenzoic Acid (CAS 183237-86-7), molecular formula C8H6F2O2 and molecular weight 172.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6F2O2, 4,5-Difluoro-2-methylbenzoic Acid contains 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 172.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 4,5-Difluoro-2-methylbenzoic 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 | C8H6F2O2 |
| Molecular Weight | 172.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2009 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,3-Difluoro-5-methylbenzoic acid (CAS 1003709-96-3)
- 2,5-Difluoro-3-methylbenzoic acid (CAS 1003710-01-7)
- 3,5-Difluoro-2-methylbenzoic acid (CAS 1003710-06-2)
- 3,4-Difluoro-5-methylbenzoic acid (CAS 1017778-60-7)
- 3,4-Difluoro-2-methoxybenzaldehyde (CAS 1023023-24-6)
- 3,5-Difluoro-4-methylbenzoic acid (CAS 103877-76-5)
- 2,5-Difluoro-4-methylbenzoic Acid (CAS 103877-80-1)
- 2,2-Difluoro-2-(pyridin-2-yl)acetamide (CAS 1064652-41-0)
Recommended Standards
- 5-Amino-2,3-difluorobenzamide (CAS 1823360-81-1)
- Methyl 2,3-difluorobenzoate (CAS 18355-74-3)
- 4-Amino-6-(difluoromethyl)picolinaldehyde (CAS 1806768-32-0)
- 2,3-Difluoro-6-methoxybenzaldehyde (CAS 187543-87-9)
- 2-Bromo-5-methyl-4-nitroanisole (CAS 861076-28-0)
- (E)-N'-(6-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-3,5-dicyanopyridin-2-yl)-N-[(4-chlorophenyl)methoxy]methanimidamide (CAS 338795-00-9)
- 2-(3-Fluorophenyl)-5-phenyl-6,6,6-trifluorohex-3-yne-2,5-diol (CAS 243139-66-4)
- 4-(3-Bromophenoxy)-2-phenylquinazoline (CAS 866155-23-9)
- Ethyl 2-ethyl-1,6-dioxaspiro[2.6]nonane-2-carboxylate (CAS 1544847-49-5)
- 3-(3-Bromophenyl)-5-methyl-1,2,4-oxadiazole (CAS 160377-57-1)
- 4-Bromo-3-hydroxybenzo[b]thiophene-2-carboxylic acid (CAS 1935348-42-7)
- 1,2,4,7,8-Pentachlorodibenzo-p-dioxin (CAS 58802-08-7)
- 6-(4-Fluorophenyl)pyrido[3,2-d]pyrimidine-2,4-diol (CAS 917758-91-9)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com