4-Fluoro-2-methylbenzaldehyde CAS 63082-45-1
| CAS No. | 63082-45-1 |
| Molecular Formula | C8H7FO |
| Molecular Weight | 138.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
4-Fluoro-2-methylbenzaldehyde (CAS 63082-45-1), molecular formula C8H7FO and molecular weight 138.14 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Fluoro-2-methylbenzaldehyde (C8H7FO) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 138.14 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H7FO |
| Molecular Weight | 138.14 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | F-containing |
Related Fluoro Standards
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- 5-Fluoro-3-vinylpyridin-2-amine (CAS 1097264-85-1)
- 4-Fluoro-5-vinylpyridin-2-amine (CAS 1185767-17-2)
- 5-Fluoro-1H,2H,3H-pyrrolo[3,2-b]pyridine (CAS 1260664-12-7)
- 4-Fluoro-2-vinylphenol (CAS 1295507-13-9)
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Recommended Standards
- 4-(Fluoromethyl)benzaldehyde (CAS 64747-66-6)
- 4-Fluorobenzamidine HCl Monohydrate (CAS 2339-59-5)
- 3-Sulfinopropanoic acid (CAS 77711-05-8)
- 4-Methyl-2,2-dioxo-1,3,2-dioxathiolane (CAS 5689-83-8)
- rel-(1R,4R)-Bicyclo[2.2.1]hept-5-en-2-ol (CAS 1212434-06-4)
- 4-Chloro-2-cyclopropylpyrazolo[1,5-a]pyrazine (CAS 1602060-23-0)
- Methyl 5-(2-methylthiazol-4-yl)furan-2-carboxylate (CAS 1399659-87-0)
- 2-(Difluoromethyl)-3-fluoro-5-nitropyridine-6-carbonyl chloride (CAS 1807136-06-6)
- 4-Chloro-3-(difluoromethyl)-2-iodo-5-(trifluoromethyl)pyridine (CAS 1807060-07-6)
- 2-Bromo-3-chloroisonicotinaldehyde (CAS 1224604-18-5)
- (7,8-Dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)(4-methyl-2-(1H-pyrrol-1-yl)thiazol-5-yl)methanone (CAS 1797870-06-4)
- 6,6'-Oxybis(benzo[d]thiazol-2-amine) (CAS 53357-06-5)
- 1-(3-(Benzyl(cyclopropyl)amino)pyrrolidin-1-yl)-2-chloroethanone (CAS 1353967-74-4)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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