2-Fluoro-4-methyl-5-(methylthio)benzaldehyde CAS 1896916-18-9
| CAS No. | 1896916-18-9 |
| Molecular Formula | C9H9FOS |
| Molecular Weight | 184.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Fluoro-4-methyl-5-(methylthio)benzaldehyde.
2-Fluoro-4-methyl-5-(methylthio)benzaldehyde (CAS 1896916-18-9), molecular formula C9H9FOS and molecular weight 184.23 g/mol, is a CATO reference standard with documented purity and traceability.
2-Fluoro-4-methyl-5-(methylthio)benzaldehyde (C9H9FOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-Fluoro-4-methyl-5-(methylthio)benzaldehyde 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 | C9H9FOS |
| Molecular Weight | 184.23 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.) | 1995 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- (2-Fluoro-5-methylphenyl)thiourea (CAS 1038356-01-2)
- 1-(3-Fluoro-2-methylphenyl)thiourea (CAS 156970-38-6)
- (5-Fluoro-2-methylphenyl)thiourea (CAS 16822-86-9)
- 6-Fluoro-N-(thietan-3-yl)pyridin-3-amine (CAS 1862917-40-5)
- (4-Fluoro-2-methylphenyl)thiourea (CAS 946612-94-8)
- (4-Fluoro-3-methylphenyl)thiourea (CAS 929562-31-2)
- 1-(2-Fluoro-4-methylphenyl)thiourea (CAS 930396-09-1)
- 1-[3-fluoro-4-(methylsulfanyl)phenyl]ethan-1-one (CAS 2968-09-4)
Recommended Standards
- 1-(1,1-Difluoro-2-methylpropyl)-4-methylbenzene (CAS 1890450-06-2)
- 1-(1,1-Difluoro-2-methylpropyl)-3-methylbenzene (CAS 1897681-51-4)
- (3aR,4R,6S,6aS)-2,2-Dimethyl-6-vinyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-ol (CAS 188665-94-3)
- 4-(3-Methylphenyl)phenol (CAS 191724-08-0)
- (S)-methyl 2-amino-2-(tetrahydro-2H-pyran-4-yl)acetate (CAS 368866-32-4)
- Isobutyl phenylcarbamate (CAS 2291-80-7)
- 2H-Benzimidazol-2-one, 1,3-dihydro-5,6-bis[[(2-hydroxy-1-naphthalenyl)methylene]amino]-, nickel complex (CAS 42844-93-9)
- 5-Bromo-2-(1-isopropyl-1H-pyrazol-4-yl)pyridine (CAS 1394022-29-7)
- 2,4-Dibromo-3-(difluoromethoxy)benzoic acid (CAS 223595-28-6)
- 6-Chloro-3-iodoimidazo[1,2-a]pyridine (CAS 885275-59-2)
- 1-(3-Bromo-2-fluorophenyl)-2-methoxyethan-1-one (CAS 1702168-23-7)
- 2-(1H-Benzo[d]imidazol-2-yl)-1-(5-ethyl-2,4-dihydroxyphenyl)ethan-1-one (CAS 210639-69-3)
- 2-((2-Oxocyclopentyl)(phenyl)methyl)-3,4-dihydronaphthalen-1(2H)-one (CAS 65419-98-9)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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