4-butoxy-2-hydroxybenzoic acid CAS 29264-27-5
| CAS No. | 29264-27-5 |
| Molecular Formula | C11H14O4 |
| Molecular Weight | 210.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4-butoxy-2-hydroxybenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.23 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).
4-butoxy-2-hydroxybenzoic acid (CAS 29264-27-5), molecular formula C11H14O4 and molecular weight 210.23 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.
CATO manufactures 4-butoxy-2-hydroxybenzoic 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 | C11H14O4 |
| Molecular Weight | 210.23 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 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.) | 1965 |
Related butoxy Standards
- 2-(tert-Butoxy)-6-hydroxybenzoic acid (CAS 1243287-03-7)
- 4-(tert-Butoxy)-2-hydroxybenzoic acid (CAS 1243360-65-7)
- 2-(tert-Butoxy)-3-hydroxybenzoic acid (CAS 1243362-47-1)
- 4-(tert-Butoxy)-3-hydroxybenzoic acid (CAS 1243390-30-8)
- 3-(tert-Butoxy)-2-hydroxybenzoic acid (CAS 1243439-67-9)
- 2-Butoxy-3-methyl-5-nitropyridine (CAS 1881320-87-1)
- 2-Butoxy-5-methyl-3-nitropyridine (CAS 1881331-64-1)
- 2-(tert-Butoxy)-4-hydroxybenzoic acid (CAS 364080-24-0)
Recommended Standards
- 4-Benzoylbenzaldehyde (CAS 20912-50-9)
- 4-Butoxy-2-nitroaniline (CAS 3987-86-8)
- 4-Aminoacridin-9(10H)-one (CAS 81104-13-4)
- 4-Cyclobutoxy-2,6-dimethoxypyrimidine (CAS 552880-83-8)
- 2-(Chloromethyl)-6-phenyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 852218-16-7)
- 4-iodo-1,8-naphthyridin-3-amine (CAS 2820501-62-8)
- (S)-3,5-Difluoro-2-(pyrrolidin-2-yl)pyridine (CAS 1213443-24-3)
- 2,2'-Thiobis(isoindoline-1,3-dione) (CAS 7764-29-6)
- 2-(2-Methyl-1H-indol-1-yl)ethanethioic S-acid (CAS 791626-02-3)
- 4-Hydroxy-N-(2-methoxyphenyl)-1-methyl-1H-benzo[c][1,2]thiazine-3-carbothioamide 2,2-dioxide (CAS 477860-31-4)
- 2-Chloro-4-nitrobenzothiazole (CAS 3507-30-0)
- Tucatinib Impurity 59 (CAS CATO-C4X-260559)
- 7-Fluoro-6-methoxybenzofuran (CAS 1427404-10-1)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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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