2-Oxo-2-(4-propoxyphenyl)acetaldehyde hydrate CAS 99433-68-8
| CAS No. | 99433-68-8 |
| Molecular Formula | C11H12O3 |
| Molecular Weight | N/A |
| 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-Oxo-2-(4-propoxyphenyl)acetaldehyde hydrate.
2-Oxo-2-(4-propoxyphenyl)acetaldehyde hydrate (CAS 99433-68-8) is a high-purity analytical reference standard with the molecular formula C11H12O3H2O and a molecular weight of 210.23 g/mol.
Structurally, 2-Oxo-2-(4-propoxyphenyl)acetaldehyde hydrate (C11H12O3H2O) contains a carboxylic acid group, a hydroxyl group, an ether linkage, 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 210.23 g/mol, it falls into the medium-molecular-weight range. 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).
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.
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 | C11H12O3 H2O |
| Molecular Weight | 210.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1985 |
Related Oxo Standards
- 5-[[3-(3-Methyl-4-propoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]methylene]-4-oxo-2-thioxo-3-thiazolidinebutanoic acid (CAS 1007530-40-6)
- (1-(4-Propoxyphenyl)ethyl)hydrazine (CAS 1016764-43-4)
- 2-(3-Propoxyphenyl)-1H-benzo[d]imidazole-5-carboxylic acid (CAS 1018571-24-8)
- 2-(3-propoxyphenyl)ethan-1-amine (CAS 103686-13-1)
- 5-(4-Propoxyphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1038997-35-1)
- 1-(4-Propoxyphenyl)ethane-1-thiol (CAS 1039320-03-0)
- 2-(4-Propoxyphenyl)ethan-1-ol (CAS 104174-22-3)
- 2-(2-Propoxyphenyl)ethan-1-ol (CAS 104174-91-6)
Recommended Standards
- 2,6-Dichloro-4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)phenol (CAS 1574340-13-8)
- 4-bromo-3-chloro-N-methylbenzamide (CAS 1517784-69-8)
- 2-(Methylthio)-6-phenyl-3-(o-tolyl)pyrimidin-4(3H)-one (CAS 89069-47-6)
- 2-(Triisopropylsilyl)oxazole (CAS 433332-27-5)
- Sitagliptin Impurity 36 (CAS 851307-12-5)
- Trabectedin (CAS 114899-77-3)
- 2,6-Difluoro-4-nitrocinnamic acid (CAS 1807439-72-0)
- 2-Chloro-3-iodoisonicotinamide (CAS 1866724-70-0)
- [4-(Isopropylsulfonyl)phenyl]acetyl chloride (CAS 1170402-71-7)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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