Pcb No. 116 CAS 18259-05-7
| CAS No. | 18259-05-7 |
| Molecular Formula | C12H5Cl5 |
| Molecular Weight | 326.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 326.43 g/mol gives Pcb No. 116 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Pcb No. 116 (CAS 18259-05-7), a certified reference material (molecular formula C12H5Cl5, MW 326.43 g/mol) for analytical method development and quality control.
Structurally, Pcb No. 116 (C12H5Cl5) contains chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 326.43 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Pcb No. 116 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 | C12H5Cl5 |
| Molecular Weight | 326.43 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 |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
Recommended Standards
- Pcb No. 115 (CAS 74472-38-1)
- Pcb No. 117 (CAS 68194-11-6)
- Pcb No. 114 (CAS 74472-37-0)
- Pcb No. 118 (CAS 31508-00-6)
- 3,4-Dimethoxyfuran-2-carboxylic acid (CAS 858796-12-0)
- DPCPX (CAS 102146-07-6)
- Naphthalen-2-yl 2-hydroxybenzoate (CAS 613-78-5)
- 2,6-Bis(trifluoromethyl)-4-hydroxyquinoline (CAS 35877-04-4)
- 4-Hydroxy-3,4-dihydropyrrolo[1,2-c]pyrimidin-1(2H)-one (CAS 223432-95-9)
- Iguratimod Impurity 40 (CAS 1179354-65-4)
- (3,4-Dimethoxyphenyl)(isoquinolin-4-yl)methanone (CAS 1187168-26-8)
- 1-(4-Hydroxy-3,5-dimethylphenyl)-2-(piperidin-1-yl)ethan-1-one (CAS 1331823-95-0)
- 4,7-Dihydro-4-oxo-2-[(triphenylmethyl)amino]-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile (CAS 1019853-64-5)
- [Glu]17-Semaglutide (CAS CATO-CPTD788604)
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