[2,2'-Bithiophene]-5,5'-diyldiboronic acid CAS 189358-30-3
| CAS No. | 189358-30-3 |
| Molecular Formula | C8H8B2O4S2 |
| Molecular Weight | 253.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures [2,2'-Bithiophene]-5,5'-diyldiboronic 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.
[2,2'-Bithiophene]-5,5'-diyldiboronic acid (CAS 189358-30-3) is a high-purity analytical reference standard with the molecular formula C8H8B2O4S2 and a molecular weight of 253.90 g/mol.
Structurally, [2,2'-Bithiophene]-5,5'-diyldiboronic acid (C8H8B2O4S2) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 253.90 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H8B2O4S2 |
| Molecular Weight | 253.90 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Sulfur Atoms | 2 |
Related Bithiophene Standards
- [2,2'-Bithiophene]-3,3'-dicarboxylic acid (CAS 19690-71-2)
- [2,2'-Bithiophene]-5,5'-dicarboxylic acid (CAS 3515-34-2)
- 1,1'-([2,2'-Bithiophene]-5,5'-diyl)bis(ethan-1-one) (CAS 18494-73-0)
- [2,2'-Bithiophene]-5,5'-dithiol (CAS 58259-03-3)
- [2,2'-Bithiophene]-5-Carbonylchloride (CAS 135887-26-2)
- [2,2'-Bithiophene]-4,4'-diyldimethanol (CAS 1423116-04-4)
- [3,3'-Bithiophene]-4,4'-diyldimethanol (CAS 23062-33-1)
- [2,2'-Bithiophene]-5-carbothioamide (CAS 128275-04-7)
Recommended Standards
- 1,2-Dibromo-4-fluorobenzene (CAS 2369-37-1)
- 2-Bromo-3,6-dichlorobenzaldehyde (CAS 1114809-26-5)
- 1,2-Dibromo-3-fluorobenzene (CAS 811711-33-8)
- 4-Bromo-2,6-dichlorobenzaldehyde (CAS 111829-72-2)
- 4-bromo-2-chloro-thiazole (CAS 92977-45-2)
- 3,3'-(Piperazine-1,4-diyl)bis(2-hydroxypropane-1-sulfonic acid) dihydrate (CAS 918131-36-9)
- N-(2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pentanamide (CAS 2246633-90-7)
- 5-Bromo-2-(2-fluorophenyl)-2H-1,2,3-triazol-4-amine (CAS 1779132-68-1)
- 2-(3,4-Dichlorophenyl)-2-phenylacetonitrile (CAS 92150-76-0)
- Pyridoxine dicaprylate (CAS 106483-04-9)
- 2-(Methylsulfonyl)-5-oxo-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 1330755-27-5)
- Methyl 2-[bis({6-chloroimidazo[1,2-a]pyridin-3-yl}methyl)amino]propanoate (CAS 1025762-32-6)
- (2-Chloro-6-ethylquinolin-3-yl)methanol (CAS 333408-38-1)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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