4-Isobutoxy-2-methylbenzoic acid CAS 175153-57-8
| CAS No. | 175153-57-8 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Isobutoxy-2-methylbenzoic acid (CAS 175153-57-8), molecular formula C12H16O3 and molecular weight 208.25 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, 4-Isobutoxy-2-methylbenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.25 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), 4-Isobutoxy-2-methylbenzoic acid 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 | C12H16O3 |
| Molecular Weight | 208.25 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.) | 2007 |
Related Isobutoxy Standards
- 2-Isobutoxy-3-methoxybenzaldehyde (CAS 100256-90-4)
- 2-Isobutoxy-2-phenylacetic acid (CAS 1016726-15-0)
- 2-Isobutoxy-5-methylbenzoic acid (CAS 105475-93-2)
- 4-Isobutoxy-3-methylbenzoic acid (CAS 1215952-74-1)
- 3-Isobutoxy-4-methylbenzoic acid (CAS 1284691-62-8)
- (4-Isobutoxy-3,5-dimethylphenyl)methanol (CAS 1038732-75-0)
- 1-(4-Isobutoxy-3-methylphenyl)ethanol (CAS 1048918-23-5)
- 2-(3-Isobutoxy-4-methylphenyl)ethan-1-ol (CAS 1443331-15-4)
Recommended Standards
- 4-Butoxy-2-methylbenzoic acid (CAS 175153-56-7)
- 2-Ethoxy-4,7-dimethyl-2,3-dihydrobenzofuran-5-ol (CAS 176910-22-8)
- Methyl 2-methyl-4-propan-2-yloxybenzoate (CAS 175153-41-0)
- 2-Ethoxy-4,6-dimethyl-2,3-dihydrobenzofuran-5-ol (CAS 176910-23-9)
- N-(3-(tert-Butyl)isoxazol-5-yl)-2,6-difluorobenzamide (CAS 82558-86-9)
- 6-(3-(Trifluoromethyl)phenoxy)nicotinaldehyde (CAS 338967-16-1)
- 5-(1-Imino-3-phenylallyl)-4,7-dimethoxybenzofuran-6-ol (CAS 61340-68-9)
- Tert-butyl ((hexahydrocyclopenta[c]pyrrol-3a(1H)-yl)methyl)carbamate (CAS 1808841-89-5)
- Nitroethane-1,1-d2 (CAS 13031-33-9)
- 3-methyl-2-(propan-2-yl)butanal (CAS 35155-64-7)
- N-methyl-2-(p-tolyl)thiazole-4-carboxamide (CAS 400079-16-5)
- N-Succinyl-Ile-Ile-Trp-AMC (CAS 133525-12-9)
- 1-((3,4-Dimethylphenyl)sulfonyl)piperidine-4-carbohydrazide (CAS 898148-28-2)
- (2S)-2-amino-4-(hydroxymethylphosphinyl)butanoyl-L-alanyl-L-alanine (2S)-2-amino-4-[hydroxy(methyl)phosphinoyl]butyryl-L-alanyl-L-alanine 2-Amino-4-(methylphosphino)butyrylalanylalanine 35597-43-4 Antibiotic SF 1293 Bialaphos CHEBI:3088 L-phosphinothricyl-L-alanyl-L-alanine N-{(2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoyl}-L-alanyl-L-alanine PTT Phosphinothricylalanylalanine bilanafos gamma-(Hydroxymethylphosphinyl)-L-alpha-aminobutyryl-L-alanyl-L-alanine phosphinothricin tripeptide (CAS 35597-43-4)
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