5-Formyl-2-thiopheneboronic Acid Pinacol Ester CAS 1040281-83-1
| CAS No. | 1040281-83-1 |
| Molecular Formula | C11H15BO3S |
| Molecular Weight | 238.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Formyl-2-thiopheneboronic Acid Pinacol Ester (CAS 1040281-83-1) is a high-purity analytical reference standard with the molecular formula C11H15BO3S and a molecular weight of 238.11 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Formyl-2-thiopheneboronic Acid Pinacol Ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 238.11 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.
CATO manufactures 5-Formyl-2-thiopheneboronic Acid Pinacol Ester 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 | C11H15BO3S |
| Molecular Weight | 238.11 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Sulfur Atoms | 1 |
Related Formyl Standards
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- 5-Formyl-2-(3-methoxypropoxy)phenylboronic acid (CAS 2096332-21-5)
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Recommended Standards
- 5-Bromobenzo[b]thiophene-2-carbonitrile (CAS 38251-66-0)
- (3-Iodopropyl)cyclopentane (CAS 106211-63-6)
- 4-bromo-5-fluoro-6-methyl-1H-pyrazolo[3,4-b]pyridine (CAS 2765271-71-2)
- 3-(3-Isopropylthioureido)phenylboronic acid (CAS 1072946-07-6)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-amine (CAS 1312611-42-9)
- 1-(4-Chlorophenyl)-5-propyl-1H-pyrazole-4-carbonyl chloride (CAS 175137-18-5)
- 8-Gingerdione(Mixture of tautomers) (CAS 77334-06-6)
- 6-Methoxy-2-morpholinoquinoline-3-carbaldehyde (CAS 436088-16-3)
- 2-Hydrazinyl-1-isopentyl-1H-benzo[d]imidazole dihydrochloride (CAS 1215598-66-5)
- N'-Methyl-N,N-diphenylcarbamimidic chloride (CAS 52072-98-7)
- Topotecan Acetate (CAS 123948-88-9)
- N-(pyridin-3-ylmethyl)piperidin-4-amine trihydrochloride (CAS 1349716-99-9)
- 1,6-Dibromodibenzo[b,d]furan (CAS 617707-26-3)
- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com