2-Oxo-2-(m-tolyl)acetaldehyde CAS 73318-83-9
| CAS No. | 73318-83-9 |
| Molecular Formula | C9H8O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Oxo-2-(m-tolyl)acetaldehyde is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Oxo-2-(m-tolyl)acetaldehyde (CAS 73318-83-9) is a high-purity analytical reference standard with the molecular formula C9H8O2H2O and a molecular weight of 166.18 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Oxo-2-(m-tolyl)acetaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 2-Oxo-2-(m-tolyl)acetaldehyde 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 | C9H8O2 H2O |
| Molecular Weight | 166.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Recommended Standards
- (S)-1-Boc-3-Methylpiperazine hydrochloride (CAS 1353006-46-8)
- 3-(3-(4-Isopropylphenyl)-2-thioxoimidazolidin-1-yl)benzoic acid (CAS 651749-01-8)
- N-Methyl-4-chlorobenzylamine (CAS 104-11-0)
- Lutetium(III) nitrate hydrate (CAS 100641-16-5)
- N-Methyl-d3-acetamide (CAS 3669-71-4)
- (1S,2S)-2-(Aminomethyl)-N,N-dimethylcyclohexanamine (CAS 2767230-56-6)
- 7-Hexadecyn-1-ol (CAS 822-21-9)
- 4-O-α-D-Mannopyranosyl-D-mannose (CAS 35438-40-5)
- 326794-48-3 ALH-32-OH Hyperbranched Polymer Hyperbranched bis-MPA polyester-32-hydroxyl, generation 3 Hyperpolymer PFH-32-OH (CAS 326794-48-3)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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