1,3,4,7-Tetrachlorodibenzofuran CAS 70648-16-7
| CAS No. | 70648-16-7 |
| Molecular Formula | C12H4Cl4O |
| Molecular Weight | 305.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1,3,4,7-Tetrachlorodibenzofuran (CAS 70648-16-7), a certified reference material (molecular formula C12H4Cl4O, MW 305.97 g/mol) for analytical method development and quality control.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1,3,4,7-Tetrachlorodibenzofuran is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H4Cl4O |
| Molecular Weight | 305.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
Related Tetrachlorodibenzofuran Standards
- 1,3,6,9-Tetrachlorodibenzofuran (CAS 83690-98-6)
- 1,2,3,4-Tetrachlorodibenzofuran (CAS 24478-72-6)
- 1,2,3,8-Tetrachlorodibenzofuran (CAS 62615-08-1)
- 1,2,3,9-Tetrachlorodibenzofuran (CAS 83704-23-8)
- 1,2,4,6-Tetrachlorodibenzofuran (CAS 71998-73-7)
- 1,2,4,7-Tetrachlorodibenzofuran (CAS 83719-40-8)
- 1,2,4,8-Tetrachlorodibenzofuran (CAS 64126-87-0)
- 1,2,6,7-Tetrachlorodibenzofuran (CAS 83704-25-0)
Recommended Standards
- 1,2,7,9-Tetrachlorodibenzofuran (CAS 83704-26-1)
- 1,3,4,8-Tetrachlorodibenzofuran (CAS 92341-04-3)
- 1,3,4,9-Tetrachlorodibenzofuran (CAS 83704-28-3)
- 1,3,6,7-Tetrachlorodibenzo[b,d]furan (CAS 57117-36-9)
- 2-Amino-4,6-dimethylphenol (CAS 41458-65-5)
- Methyl 2,2,3,3-tetrafluoro-3-(trifluoromethoxy)propionate (CAS 356-69-4)
- (2S,4R)-4-((tert-Butoxycarbonyl)amino)-5-(4-hydroxy-3-nitrophenyl)-2-methylpentanoic acid (CAS 2361404-24-0)
- Varenicline Impurity 66 HCI (CAS 328055-88-5)
- 2-(Dimethylamino)-N'-(diphenylmethylene)acetohydrazide (CAS 93730-28-0)
- 3-Hydroxy-2,3-dimethylbutanoic acid (CAS 23985-53-7)
- Lamivudine EP Impurity H (CAS 160552-54-5)
- 4-(Difluoromethyl)-2-iodo-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine (CAS 1806029-83-3)
- Dimethyl 2-(2-oxopropyl)malonate (CAS 24889-15-4)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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 18665070610 / Nicole.chen@cato-chem.com