Pcb No. 108 CAS 70362-41-3
| CAS No. | 70362-41-3 |
| Molecular Formula | C12H5Cl5 |
| Molecular Weight | 326.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pcb No. 108.
CATO supplies Pcb No. 108 (CAS 70362-41-3), a certified reference material (molecular formula C12H5Cl5, MW 326.43 g/mol) for analytical method development and quality control.
Owing to chlorine substitution, an aromatic ring system, Pcb No. 108 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | 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.) | 1977 |
| Halogen Content | Cl-containing |
Recommended Standards
- Pcb No. 107 (CAS 70424-68-9)
- Pcb No. 109 (CAS 74472-35-8)
- Pcb No. 106 (CAS 70424-69-0)
- Pcb No. 110 (CAS 38380-03-9)
- 1-(1,3-Dioxolan-2-ylmethyl)-3-methylbenzene (CAS 898759-51-8)
- 2-chloro-N-(1-cyano-1-methylethyl)-N-methylacetamide (CAS 1158075-57-0)
- 1-(tert-Butyl) 2-ethyl (2R,4S)-4-bromo-1,2-pyrrolidinedicarboxylate (CAS 132622-76-5)
- (S)-4,4-Difluoropyrrolidine-2-carboxamide Trifluoroacetate (CAS 1448440-46-7)
- 6-Chloro-N-(2-methoxyethyl)-2-pyrazinamine (CAS 1220016-30-7)
- Methyl 4-chloro-3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2377611-92-0)
- Naftidrofuryl (CAS 31329-57-4)
- N-(2-Benzoyl-1,2,3,4-tetrahydroisoquinolin-7-yl)ethanesulfonamide (CAS 955716-96-8)
- 3-Bromo-2-(trifluoromethyl)thiophene (CAS 924818-17-7)
- Liraglutide Impurity 15 TFA Salt (CAS CATO-C4X-199215)
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