Benzo[b]benzo[4,5]thieno[2,3-d]thiophene CAS 248-70-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 248-70-4 |
| Molecular Formula | C14H8S2 |
| Molecular Weight | 240.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzo[b]benzo[4,5]thieno[2,3-d]thiophene (CAS 248-70-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H8S2. Molecular weight: 240.34 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H8S2 |
| Molecular Weight | 240.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Benzo Standards
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- (4-(Benzo[d]thiazol-2-yl)phenyl)methanamine (CAS 34211-04-6)
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Recommended Standards
- Adamantan-1-yl-phenyl-methanone (CAS 31919-47-8)
- benzyl 3-methylpiperazine-1-carboxylate (CAS 84477-85-0)
- 8-Cyclohexyl-8-oxooctanoic acid (CAS 898766-75-1)
- 2-(Difluoromethyl)-4-methyl-3-nitropyridine-6-sulfonamide (CAS 1805560-07-9)
- 4-Ethynylpyridine (CAS 2510-22-7)
- (S)-2-Amino-N-isopropyl-3-methyl-N-(thiophen-3-ylmethyl)butanamide (CAS 1354011-02-1)
- Fmoc-D-Lys(Mtt)-OH (CAS 198544-94-4)
- 2-(Methyl(pyridin-3-ylmethyl)amino)acetic acid (CAS 99362-37-5)
- 5-[3-(Dimethylamino)phenyl]-4h-1,2,4-triazol-3-amine (CAS 910443-59-3)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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 13829788188 / jacky.chen@cato-chem.com