5-(2,4,5-Trimethylphenyl)-5-oxovaleric acid CAS 951892-56-1
| CAS No. | 951892-56-1 |
| Molecular Formula | C14H18O3 |
| Molecular Weight | 234.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-(2,4,5-Trimethylphenyl)-5-oxovaleric acid (C14H18O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 234.29 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-(2,4,5-Trimethylphenyl)-5-oxovaleric acid (CAS 951892-56-1), molecular formula C14H18O3 and molecular weight 234.29 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C14H18O3 |
| Molecular Weight | 234.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Trimethylphenyl Standards
- 5-(2,4,6-Trimethylphenyl)-5-oxovaleric acid (CAS 500892-07-9)
- N-(2,4,6-trimethylphenyl)maleamicacid (CAS 109096-32-4)
- (2,4,5-Trimethylphenyl)methanesulfonyl chloride (CAS 1251227-56-1)
- 1-(2,4,5-Trimethylphenyl)heptan-1-one (CAS 1352206-77-9)
- 5-Methyl-4-(2,4,5-trimethylphenyl)-1,3-thiazol-2-amine (CAS 743444-80-6)
- 4-(2,4,5-Trimethylphenyl)thiazole-2-carbaldehyde (CAS 383144-14-7)
- 2-(2,4,5-TRimethylphenyl)imidazo[1,2-a]pyrimidine (CAS 910443-15-1)
- 5-(2,4,6-Trimethylphenyl)-1,2-oxazole-3-carboxylic acid (CAS 1216316-38-9)
Recommended Standards
- 5-(2,3-Dimethylphenyl)-3-methyl-5-oxovaleric acid (CAS 951894-18-1)
- 5-(((Tetrahydro-2H-pyran-2-yl)oxy)methyl)-1,3-dihydroisobenzofuran (CAS 919106-41-5)
- 5-(2,4-Dimethylphenyl)-3-methyl-5-oxovaleric acid (CAS 92864-22-7)
- 4-Methylbenzyl piperazine-1-carboxylate (CAS 46821-51-6)
- (7R,7AR)-7-isopropyltetrahydro-1H-pyrrolizin-3(2H)-one (CAS 92721-37-4)
- Loperamide Hydrochloride (CAS 34552-83-5)
- 3-((2-Aminoethyl)thio)-1-(4-ethoxyphenyl)pyrrolidine-2,5-dione hydrochloride (CAS 817172-29-5)
- 1-Methyl-1H-pyrazole-3-carboxamide (CAS 89179-62-4)
- 5-(3-Chlorophenyl)-3-methylisoxazole-4-carboxylic acid (CAS 92545-96-5)
- 4-(Bromomethyl)-3-chlorobenzonitrile (CAS 21924-83-4)
- 1-(Benzo[d][1,3]dioxol-5-ylmethyl)piperidin-3-ol (CAS 352445-85-3)
- 1-(6,7,8,9-Tetrahydro-5H-cyclohepta[c]pyridazin-3-yl)piperidine-4-carboxylic acid (CAS 1707394-27-1)
- 3-(Chloromethyl)phenyl 2-methylpropanoate (CAS 1260763-91-4)
- Neuropeptide AF (human) (CAS 192387-38-5)
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