Bithionol CAS 97-18-7
| CAS No. | 97-18-7 |
| Molecular Formula | C12H6Cl4O2S |
| Molecular Weight | 356.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 356.05 g/mol gives Bithionol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Bithionol (CAS 97-18-7) is a high-purity analytical reference standard with the molecular formula C12H6Cl4O2S and a molecular weight of 356.05 g/mol.
Based on its molecular formula C12H6Cl4O2S, Bithionol contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C12H6Cl4O2S |
| Molecular Weight | 356.05 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Bithionol Standards
Recommended Standards
- Pipobroman (CAS 54-91-1)
- Tetradifon (CAS 116-29-0)
- 4-Methyl-9-(trimethylstannyl)acridine (CAS 602302-61-4)
- 5,7-Dibromo-1,2,3,4-tetrahydroacridin-9-amine (CAS 560134-44-3)
- 4-Bromo-1-chloro-2-ethoxybenzene (CAS 900174-61-0)
- (4-phenoxyphenyl)magnesium bromide 21473-02-9 4-Phenoxyphenylmagnesium bromide (CAS 21473-02-9)
- 9-Ethyl-9H-purine-2,6-diamine (CAS 16417-68-8)
- 6-Bromo-5H-benzo[7]annulen-5-one (CAS 22360-00-5)
- 5-ANDROSTEN-3β-OL-17-ONE OXIME (CAS 2830-48-0)
- 8-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)quinolin-2(1H)-one (CAS 1219130-55-8)
- Abiraterone Impurity N6 (CAS 853-23-6)
- YM 2447690 (CAS 837424-39-2)
- 4-Bromo-2-iodothiophene (CAS 73882-40-3)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
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