7-Methoxy-5-methylbenzothiophene-2-boronic Acid CAS 1443531-60-9
| CAS No. | 1443531-60-9 |
| Molecular Formula | C10H11BO3S |
| Molecular Weight | 222.07 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.
CATO supplies 7-Methoxy-5-methylbenzothiophene-2-boronic Acid (CAS 1443531-60-9), a certified reference material (molecular formula C10H11BO3S, MW 222.07 g/mol) for analytical method development and quality control.
Structurally, 7-Methoxy-5-methylbenzothiophene-2-boronic Acid (C10H11BO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 222.07 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 7-Methoxy-5-methylbenzothiophene-2-boronic 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 | C10H11BO3S |
| Molecular Weight | 222.07 g/mol |
| 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- (6-Methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)boronic acid (CAS 1789711-61-0)
- [3-(1-Methoxy-2-methyl-1-oxopropan-2-yl)phenyl]boronic acid (CAS 2246658-07-9)
- 2-Methoxy-4-(trifluoromethyl)pyrimidine-5-carboxylic acid (CAS 1202980-50-4)
- 2-Methoxy-3-nitro-5-(trifluoromethyl)pyridine (CAS 1214343-07-3)
- 2-Methoxy-3-nitro-6-(trifluoromethyl)pyridine (CAS 1215595-92-8)
- 4-Methoxy-5-nitro-2-(trifluoromethyl)pyridine (CAS 1588441-18-2)
- 2-Methoxy-5-nitro-3-(trifluoromethyl)pyridine (CAS 1803857-10-4)
- 5-Methoxy-3-(trifluoromethyl)pyrazine-2-carboxylic acid (CAS 2770349-33-0)
Recommended Standards
- 2-Butoxy-4,6-dichloro-1,3,5-triazine (CAS 13838-32-9)
- 4,5-Dichlorophthalimide (CAS 15997-89-4)
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- 1,5-dichloro-3-fluoro-2-isothiocyanatobenzene (CAS 1823548-33-9)
- 1-(5-Fluoropyridin-2-yl)-1,4-diazepane dihydrochloride (CAS 1951441-18-1)
- 5-Bromo-3-ethyl-2-iodotoluene (CAS 1208075-21-1)
- Methyl 2-((piperidin-4-ylmethyl)amino)nicotinate dihydrochloride (CAS 1185308-97-7)
- 3-(Benzyloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1643571-10-1)
- 5-Chloro-4-(phenylsulfonyl)-N-((tetrahydrofuran-2-yl)methyl)thiazol-2-amine (CAS 852711-89-8)
- 2-(Bromomethyl)-5-methylimidazo[1,2-a]pyridine hydrobromide (CAS 125040-56-4)
- 2-((2-Ethylquinazolin-4-yl)oxy)-N-(o-tolyl)acetamide (CAS 1031993-19-7)
- 1-(Carboxymethyl)-1H-tetrazolepotassium salt (CAS 51286-83-0)
- n-((5-((Methylthio)methyl)furan-2-yl)methyl)-1-(1h-pyrazol-1-yl)propan-2-amine (CAS 1157804-90-4)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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