4-Methoxy-3-methyl-5-(trifluoromethyl)benzaldehyde CAS 1431329-77-9
| CAS No. | 1431329-77-9 |
| Molecular Formula | C10H9F3O2 |
| Molecular Weight | 218.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 4-Methoxy-3-methyl-5-(trifluoromethyl)benzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 218.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Methoxy-3-methyl-5-(trifluoromethyl)benzaldehyde (CAS 1431329-77-9) is a high-purity analytical reference standard with the molecular formula C10H9F3O2 and a molecular weight of 218.17 g/mol.
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 | C10H9F3O2 |
| Molecular Weight | 218.17 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1991 |
| Halogen Content | F-containing |
Related Methoxy Standards
- 2-Methoxy-1-(2-(trifluoromethyl)phenyl)ethanone (CAS 1342027-89-7)
- 1-(4-Methoxy-3-(trifluoromethyl)phenyl)ethanone (CAS 149105-10-2)
- 2-Methoxy-5-methyl-2,2,2-trifluoroacetophenone (CAS 180311-39-1)
- 2-methoxy-1-[3-(trifluoromethyl)phenyl]ethan-1-one (CAS 192225-35-7)
- 1-(3-Methoxy-5-(trifluoromethyl)phenyl)ethan-1-one (CAS 916421-06-2)
- 1-(4-Methoxy-2-(trifluoromethyl)phenyl)ethanone (CAS 220141-75-3)
- 2-Methoxy-1-(4-(trifluoromethyl)phenyl)ethan-1-one (CAS 26771-69-7)
- 2-Methoxy-6-methyl-4-(trifluoromethyl)benzaldehyde (CAS 2090792-58-6)
Recommended Standards
- 2-(3,3,3-Trifluoropropyl)benzoic acid (CAS 1424445-88-4)
- 3,4,5-Trifluorophenethyl acetate (CAS 1443351-10-7)
- 3-Methyl-6-(trifluoromethyl)-6,7-dihydrobenzofuran-4(5H)-one (CAS 1420793-41-4)
- 2-Methyl-6-(trifluoromethyl)-6,7-dihydrobenzofuran-4(5H)-one (CAS 1420791-34-9)
- 3-(5-((5-Methylpyridin-2-yl)oxy)pentyl)thiazolidine dihydrochloride (CAS 41287-95-0)
- (E)-({2-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)[(2,4-dichlorophenyl)methoxy]amine (CAS 478030-98-7)
- 2',5'-Bis((ethylthio)methyl)-[1,1':4',1''-terphenyl]-4,4''-diamine (CAS 2231404-37-6)
- 4-Fluoro-3-(trifluoromethoxy)benzoic acid (CAS 886496-49-7)
- 2-(2-Chloro-4-phenylquinolin-3-yl)acetic acid (CAS 1706450-09-0)
- Ethyl 5-(4-methoxyphenyl)-2H-pyrazole-3-carboxylate (CAS 229015-76-3)
- 3-Cyclopropyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid (CAS 954272-31-2)
- (3R,4R)-4-(dimethylamino)pyrrolidin-3-ol dihydrochloride (CAS 2227197-57-9)
- (5-(Trifluoromethyl)pyridin-3-yl)methanamine dihydrochloride (CAS 1020747-92-5)
- (Asn5)-Delta-Sleep Inducing Peptide (H-2555.0005) (CAS 80064-67-1)
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