4-Isopropyl-3-propoxybenzoic acid CAS 1361003-87-3
| CAS No. | 1361003-87-3 |
| Molecular Formula | C13H18O3 |
| Molecular Weight | 222.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Isopropyl-3-propoxybenzoic acid (CAS 1361003-87-3) is a high-purity analytical reference standard with the molecular formula C13H18O3 and a molecular weight of 222.28 g/mol.
Based on its molecular formula C13H18O3, 4-Isopropyl-3-propoxybenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 222.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C13H18O3 |
| Molecular Weight | 222.28 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1991 |
Related Isopropyl Standards
- Methyl 2-isopropyl-4,5,6,7-tetrahydro-1H-benzo[d]imidazole-6-carboxylate (CAS 1004529-27-4)
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- 2-(3-Isopropyl-5-methylphenoxy)propanoic acid (CAS 926256-81-7)
- 2-(5-Isopropyl-4-methoxy-2-methylphenyl)acetic acid (CAS 81354-65-6)
- 7-Isopropyl-4-methyl-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid (CAS 792952-01-3)
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Recommended Standards
- (2E)-1-(2-Methylphenyl)-3-phenylprop-2-en-1-one (CAS 13565-43-0)
- Ethyl 4-isopropoxy-2-methylbenzoate (CAS 1368033-22-0)
- Ethyl 4-(1-hydroxybutyl)benzoate (CAS 1355533-73-1)
- Ethyl 4-ethoxy-2,3-dimethylbenzoate (CAS 1368039-76-2)
- (Cyclobutylethynyl)trimethylsilane (CAS 1268810-13-4)
- N-Trifluoroacetyl-3,4-(methylenedioxy)aniline (CAS 85575-56-0)
- 2-Amino-4-(methylsulfonyl)benzoic Acid (CAS 393085-45-5)
- Benzyl (R)-(4-oxocyclopent-2-en-1-yl)carbamate (CAS 221910-77-6)
- 6-Fluoro-1-(p-tolyl)-1H-benzo[e][1,3,4]thiadiazine-3-carboxylic acid 4,4-dioxide (CAS 1708401-67-5)
- 1-Methyl-4-((nitromethyl)sulfonyl)benzene (CAS 51351-89-4)
- 4-(N-Methylsulfamoyl)-2-trifluoromethylphenylboronic acid (CAS 1402238-37-2)
- CAS 2315262-42-9 (CAS 2315262-42-9)
- methyl 3-(2-fluorophenyl)-2-hydroxybutanoate (CAS 1536007-51-8)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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