4-Methoxy-3-isopropylbenzoic acid CAS 33537-78-9
| CAS No. | 33537-78-9 |
| Molecular Formula | C11H14O3 |
| Molecular Weight | 194.23 g/mol |
| 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 4-Methoxy-3-isopropylbenzoic acid.
4-Methoxy-3-isopropylbenzoic acid (CAS 33537-78-9), molecular formula C11H14O3 and molecular weight 194.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Methoxy-3-isopropylbenzoic acid (C11H14O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Methoxy-3-isopropylbenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H14O3 |
| Molecular Weight | 194.23 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.) | 1966 |
Related Methoxy Standards
- 2-(4-Methoxy-3,5-dimethylphenyl)acetic acid (CAS 104216-50-4)
- 2-(4-Methoxy-2,5-dimethylphenyl)acetic acid (CAS 104216-78-6)
- Ethyl 2-methoxy-5-methylbenzoate (CAS 1071141-41-7)
- 4-Methoxy-2-(propan-2-yloxy)benzaldehyde (CAS 107811-48-3)
- Methyl 2-methoxy-4,6-dimethylbenzoate (CAS 110382-80-4)
- 2-Ethyl-4-methoxy-3-methylbenzoic acid (CAS 1181770-76-2)
- 2-Methoxy-3,4-dimethylphenyl acetate (CAS 118538-98-0)
- 2-Methoxy-N-(2-(pyridin-2-yl)ethyl)acetamide (CAS 1210792-81-6)
Recommended Standards
- 4-Isopropoxy-3-methylbenzoic Acid (CAS 856165-81-6)
- 4-Methoxy-3-propoxybenzaldehyde (CAS 5922-56-5)
- 4-Isopropoxy-3-methoxybenzaldehyde (CAS 2538-98-9)
- 4-Methoxyphenethyl acetate (CAS 22532-51-0)
- 1172891-28-9 1-(4-Methylbenzyl)-1,4-dihydroquinoxaline-2,3-dione MFCD14281824 (CAS 1172891-28-9)
- 1-(Pyrrolidin-3-yl)pyrrolidin-3-ol dihydrochloride (CAS 1220038-15-2)
- (2E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid (CAS 144878-40-0)
- Methyl 5-amino-2-methoxyisonicotinate (CAS 1368183-31-6)
- 2-Amino-N-(4-hydroxycyclohexyl)-2-methylpropanamide hydrochloride (CAS 1311316-54-7)
- 3-(4-Aminopiperidin-1-yl)-1-(4-fluorophenyl)pyrazin-2(1H)-one (CAS 1713174-94-7)
- (2R,3R,4S)-2-((R)-1-(Dodecanoyloxy)-2-hydroxyethyl)-4-hydroxytetrahydrofuran-3-yl dodecanoate (CAS 28905-44-4)
- N-(2-Ethoxyphenyl)-4,5-dihydro-1,3-thiazol-2-amine (CAS 379729-91-6)
- 2,4,5-Tribromo-1-vinylimidazole (CAS 41205-31-6)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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