2-(2-Methoxyphenoxy)acetaldehyde CAS 18167-91-4
| CAS No. | 18167-91-4 |
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-Methoxyphenoxy)acetaldehyde (CAS 18167-91-4), molecular formula C9H10O3 and molecular weight 166.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-(2-Methoxyphenoxy)acetaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-(2-Methoxyphenoxy)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 | C9H10O3 |
| Molecular Weight | 166.17 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.) | 1962 |
Related Methoxyphenoxy Standards
- 2-(4-Methoxyphenoxy)acetaldehyde (CAS 68426-09-5)
- 2-(3-Methoxyphenoxy)ethylamine (CAS 6487-86-1)
- 2-(4-Methoxyphenoxy)ethylamine (CAS 50800-92-5)
- 2-(3-Methoxyphenoxy)ethan-1-ol (CAS 34114-37-9)
- 2-(4-Methoxyphenoxy)ethanol (CAS 5394-57-0)
- 2-(2-Methoxyphenoxy)acetonitrile (CAS 6781-29-9)
- 2-(3-Methoxyphenoxy)acetonitrile (CAS 50635-23-9)
- 2-(3-Methoxyphenoxy)-1-phenylethanol (CAS 29509-27-1)
Recommended Standards
- 4-Hydroxy-3-methoxy-2-methylbenzaldehyde (CAS 18102-32-4)
- 2-Ethoxy-3-hydroxybenzaldehyde (CAS 182067-51-2)
- 1-(4,5-Dihydroxy-2-methylphenyl)ethanone (CAS 18087-17-7)
- 1-Fluoro-5,7-dioxa-6-thiaspiro[2.5]Octane 6-oxide (CAS 1835276-52-2)
- 1-((Tert-butoxycarbonyl)(methyl)amino)-3,3-dimethylcyclobutane-1-carboxylic acid (CAS 1997926-22-3)
- (R)-Thiazolidine-4-carboxamide (CAS 61434-84-2)
- 3-Cyclopropyl-6-phenyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 954578-92-8)
- 2-(Methylthio)-5-(p-tolylthio)pyrimidine-4-carboxylic acid (CAS 26032-74-6)
- 1-((1R,4r)-4-hydroxycyclohexyl)pyrrolidin-2-one (CAS 886615-37-8)
- N-Allyl-6-(trifluoromethyl)pyridin-2-amine (CAS 944580-75-0)
- 4-(Benzyloxy)-1H-pyrazolo[4,3-c]pyridin-3-amine (CAS 1629037-78-0)
- 6-Chloro-n2-phenyl-1,3,5-triazine-2,4-diamine (CAS 16007-72-0)
- Setosusin (CAS 182926-45-0)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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