4-((2-Carboxypropan-2-yl)oxy)benzoic acid CAS 42019-57-8
| CAS No. | 42019-57-8 |
| Molecular Formula | C11H12O5 |
| Molecular Weight | 224.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-((2-Carboxypropan-2-yl)oxy)benzoic acid (CAS 42019-57-8), molecular formula C11H12O5 and molecular weight 224.21 g/mol, is a CATO reference standard with documented purity and traceability.
4-((2-Carboxypropan-2-yl)oxy)benzoic acid (C11H12O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-((2-Carboxypropan-2-yl)oxy)benzoic 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 | C11H12O5 |
| Molecular Weight | 224.21 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 methanol, ethanol, 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.) | 1969 |
Related Carboxypropan Standards
- 2-[3-[[4-[[2-(2-carboxypropan-2-yloxy)-5-chlorophenyl]methyl]-2-methyl-3-pyridinyl]-[2-(4-chlorophenoxy)-2-methyl-1-oxopropoxy]methyl]-4-chlorophenoxy]-2-methylpropanoic acid hydrochloride 2-[4-chloranyl-3-[[4-[[5-chloranyl-2-(2-methyl-1-oxidanyl-1-oxidanylidene-propan-2-yl)oxy-phenyl]methyl]-2-methyl-pyridin-3-yl]-[2-(4-chloranylphenoxy)-2-methyl-propanoyl]oxy-methyl]phenoxy]-2-methyl-propanoic acid hydrochloride 3260-85-3 A821337 (CAS 3260-85-3)
- 4-(4-((2-Carboxypropan-2-yl)oxy)-7-methylquinoline-2-carboxamido)-5-(4-(ethoxycarbonyl)piperazin-1-yl)-5-oxopentanoic acid (CAS 478005-11-7)
Recommended Standards
- 3-O-HYdroxyethyl-d-glucose (CAS 25018-14-8)
- 4-((3-Formylpyridin-2-yl)oxy)benzonitrile (CAS 866049-85-6)
- 3-Nitro-4-(propylamino)benzoic acid (CAS 68740-31-8)
- 4-((5-Formylpyridin-2-yl)oxy)benzonitrile (CAS 328547-41-7)
- Methyl (R)-3-amino-3-(3-chloro-4-methoxyphenyl)propanoate (CAS 1213395-90-4)
- 4-(2-Chlorophenyl)isoxazol-5-amine (CAS 925007-36-9)
- Methyl 2-Fluoro-3-methoxybenzoate (CAS 958991-48-5)
- 2-(Methacryloyloxy)ethanesulfonic acid (CAS 10595-80-9)
- Tert-butyl 6-fluoroindoline-1-carboxylate (CAS 1065183-64-3)
- 4-Chloro-2-fluoro-5-methoxybenzenesulfonyl chloride (CAS 942199-58-8)
- Ribociclib Impurity 24 (CAS CATO-C4X-310024)
- Tridocosanoin (CAS CATO-CCFD200472)
- Mesuaxanthone A (CAS 3561-81-7)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com