2-Chlorodibenzo-p-dioxin CAS 39227-54-8
| CAS No. | 39227-54-8 |
| Molecular Formula | C12H7ClO2 |
| Molecular Weight | 218.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 218.64 g/mol gives 2-Chlorodibenzo-p-dioxin distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chlorodibenzo-p-dioxin (CAS 39227-54-8), a certified reference material (molecular formula C12H7ClO2, MW 218.64 g/mol) for analytical method development and quality control.
Structurally, 2-Chlorodibenzo-p-dioxin (C12H7ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 218.64 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 2-Chlorodibenzo-p-dioxin meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H7ClO2 |
| Molecular Weight | 218.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
Related Chlorodibenzo Standards
- 1-Chlorodibenzo-p-dioxin (CAS 39227-53-7)
- 3-Chlorodibenzo[b,d]furan-4-ol (CAS 51596-34-0)
- 7-Chlorodibenzo[b,d]furan-1-ol (CAS 2226916-90-9)
- 1-Chlorodibenzo[b,d]thiophene (CAS 109014-36-0)
- 2-Chlorodibenzo[b,d]thiophene (CAS 68820-91-7)
- 4-Chlorodibenzo[b,d]thiophene (CAS 69747-68-8)
- 2-Chlorodibenzo[b,d]furan-3-amine (CAS 5833-88-5)
- 2-Chlorodibenzo[b,f]oxepine (CAS 25558-88-7)
Recommended Standards
- 2-Chloro-4-methylpyrido[1,2-e]purine (CAS 2762674-63-3)
- 3-(2-Chlorophenyl)-5-methylisoxazole-4-carbonitrile (CAS 320424-75-7)
- 2-Chloro-4-methoxyquinoline-7-carbonitrile (CAS 2842033-72-9)
- 3-(2-Chloropyrimidin-4-yl)benzaldehyde (CAS 859516-77-1)
- 2-Cyclopentyl-2-oxoacetic acid (CAS 5763-56-4)
- 3-Methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-5-carboxylic acid (CAS 2393849-94-8)
- 2-Butenedioic acid (2E)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2-propenoic acid (CAS 67674-65-1)
- 7-Fluoro-2-(pyridin-3-yl)indoline (CAS 592465-99-1)
- Racecadotril Impurity 20 (CAS CATO-C4X-110620)
- Aminopyrofen (CAS 1531626-08-0)
- Amylopectin（from Corn） (CAS 9037-22-3)
- (4-aminobut-2-yn-1-yl)dimethylamine (CAS 53913-95-4)
- 2-(Ethanesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1008987-50-5)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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