2-Boronobenzo[b]thiophene-6-carboxylic acid CAS 946427-46-9
| CAS No. | 946427-46-9 |
| Molecular Formula | C9H7BO4S |
| Molecular Weight | 222.03 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 2-Boronobenzo[b]thiophene-6-carboxylic acid.
2-Boronobenzo[b]thiophene-6-carboxylic acid (CAS 946427-46-9), molecular formula C9H7BO4S and molecular weight 222.03 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Boronobenzo[b]thiophene-6-carboxylic acid (C9H7BO4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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.
As a certified reference material (CRM), 2-Boronobenzo[b]thiophene-6-carboxylic 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 | C9H7BO4S |
| Molecular Weight | 222.03 g/mol |
| 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2,6-Dichloro-N-methyl-3-nitropyridin-4-amine (CAS 887147-20-8)
- 2-Bromo-3,5-difluoro-6-methylaniline (CAS 2829351-17-7)
- 2,6-Dichloro-5-methoxypyrimidine-4-carboxamide (CAS 2387106-56-9)
- 2-Bromo-4,6-difluoro-N-methylaniline (CAS 876061-36-8)
- Benzyl b-D-xylopyranoside (CAS 10548-61-5)
- 2-Chloro-5-propionylphenylboronic acid (CAS 2096331-69-8)
- 1-(5-amino-2-fluorophenyl)-1,3-diazinan-2-one (CAS 1250903-02-6)
- 6-methoxy-3,4-dihydro-2H-1-benzopyran-3-one (CAS 76322-25-3)
- Tofacitinib Impurity 38 (CAS 1092578-45-4)
- 3-Bromo-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]oxazepine (CAS 1782346-41-1)
- 2-Cyclohexyl-N-(piperidin-4-yl)acetamide (CAS 278598-13-3)
- tert-butyl N-(7-methyl-5-azaspiro[2.4]heptan-7-yl)carbamate (CAS 915795-05-0)
- Dehydro Nisoldipine-d7 (CAS 1329836-20-5)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
Why CATO?
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