2,2',5-Trichlorobiphenyl CAS 37680-65-2
| CAS No. | 37680-65-2 |
| Molecular Formula | C12H7Cl3 |
| Molecular Weight | 257.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,2',5-Trichlorobiphenyl 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.
2,2',5-Trichlorobiphenyl (CAS 37680-65-2), molecular formula C12H7Cl3 and molecular weight 257.54 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to chlorine substitution, an aromatic ring system, 2,2',5-Trichlorobiphenyl is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 257.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C12H7Cl3 |
| Molecular Weight | 257.54 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
Related Trichlorobiphenyl Standards
- 2,4',6-Trichlorobiphenyl (CAS 38444-77-8)
- 2,4,4＇-Trichlorobiphenyl-2＇,3＇,5＇,6＇-d4 (CAS 1219799-32-2)
- 2,4,6-Trichlorobiphenyl-2′,3′,4′,5′,6′-d5 (CAS 1219794-85-0)
- 2,3,4-Trichlorobiphenyl-2′,3′,4′,5′,6′-d5 (CAS 1219805-70-5)
- 3,4,5-Trichlorobiphenyl-2′,3′,4′,5′,6′-d5 (CAS 93952-22-8)
- 2,4,5-Trichlorobiphenyl- (CAS 208263-78-9)
- 2,4,4'-Trichlorobiphenyl ether (CAS 59039-21-3)
- 2,4',5-Trichlorobiphenyl-2',3',5',6'-d4 (CAS 1219794-87-2)
Recommended Standards
- Pcb No. 17 (CAS 37680-66-3)
- Pcb No. 19 (CAS 38444-73-4)
- Pcb No. 16 (CAS 38444-78-9)
- Pcb No. 20 (CAS 38444-84-7)
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