4-Methoxy-2-methylbenzofuran-6-carboxylic acid CAS 37963-75-0
| CAS No. | 37963-75-0 |
| Molecular Formula | C11H10O4 |
| Molecular Weight | 206.19 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-2-methylbenzofuran-6-carboxylic acid.
4-Methoxy-2-methylbenzofuran-6-carboxylic acid (CAS 37963-75-0), molecular formula C11H10O4 and molecular weight 206.19 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-Methoxy-2-methylbenzofuran-6-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H10O4 |
| Molecular Weight | 206.19 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Methoxy Standards
- 6-Methoxy-2-methylbenzofuran-3-carboxylic acid (CAS 103986-33-0)
- 6-Methoxy-4-methyl-1-benzofuran-2-carboxylic acid (CAS 1427427-80-2)
- 7-Methoxy-5-methylbenzofuran-3-carboxylic acid (CAS 1485985-19-0)
- 3-Methoxy-7-methylbenzofuran-2-carboxylic acid (CAS 1554430-92-0)
- 3-Methoxy-5-methylbenzofuran-2-carboxylic acid (CAS 1557010-09-9)
- 4-(3-Methoxy-3-oxoprop-1-en-1-yl)benzoic acid (CAS 160648-26-0)
- 6-Methoxy-3-oxo-2,3-dihydro-1H-indene-1-carboxylic acid (CAS 17825-44-4)
- 7-Methoxy-3-methyl-1-benzofuran-2-carboxylic acid (CAS 18703-80-5)
Recommended Standards
- 4-Hydroxy-3-methoxybenzene-1-sulfonyl fluoride (CAS 95546-51-3)
- 4-Methoxy-3-methylbenzofuran-2-carboxylic acid (CAS 3781-72-4)
- 4,7-Dimethoxybenzofuran-5-carbaldehyde (CAS 886751-65-1)
- 4-Methoxy-3-methylbenzofuran-6-carboxylic acid (CAS 2691125-86-5)
- Maleimide-PEG<SUB>12</SUB>-succinimidyl ester (CAS 1426151-00-9)
- 3-(Propane-1-sulfonyl)-propan-1-ol (CAS 1176457-22-9)
- N-Boc-2-Amino-5-bromopyrimidine (CAS 883231-23-0)
- (4-(M-tolyl)thiophen-2-yl)boronic acid (CAS 2122282-61-3)
- 1-azabicyclo[3.2.1]octane-5-carboxylic acid hydrochloride (CAS 119102-94-2)
- tert-Butyl chlorothioformate (CAS 13889-95-7)
- n-{[5-(2-chlorophenyl)thiophen-2-yl]methyl}cyclopropanamine hydrochloride (CAS 1172037-94-3)
- 4-Bromo-6,7-dimethyl-2,3-dihydro-1H-inden-1-one (CAS 112631-50-2)
- 2-[3-(Cyclopropylmethoxy)-4-ethoxyphenyl]acetic Acid (CAS 2006277-02-5)
- Prolactin-Releasing Peptide (12-31) (human) (CAS 235433-36-0)
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