Pcb No. 98 CAS 60233-25-2
| CAS No. | 60233-25-2 |
| 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. 98.
Pcb No. 98 (CAS 60233-25-2), molecular formula C12H5Cl5 and molecular weight 326.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Pcb No. 98 (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 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 | >95% |
| 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.) | 1974 |
| Halogen Content | Cl-containing |
Recommended Standards
- Pcb No. 96 (CAS 73575-54-9)
- (4-((3,5-Dimethyl-1H-pyrazol-1-yl)methyl)phenyl)(4-ethylpiperazin-1-yl)methanone (CAS 1281035-76-4)
- Pcb No. 95 (CAS 38379-99-6)
- 1,2-Bis((1H-benzo[d]imidazol-2-yl)thio)ethane (CAS 21224-37-3)
- 2-Azetidinecarboxylic acid, 1-(1-methylethyl)-, (2S)- (CAS 255882-98-5)
- 1-(2-Chloro-6-methoxypyridin-4-yl)ethanone (CAS 864674-09-9)
- N-(4-(N-(2-bromoethyl)sulfamoyl)phenyl)acetamide (CAS 78234-01-2)
- 2-Chloro-N-(4-chloro-2-(2-fluorobenzoyl)-phenyl)acetamide (CAS 2836-40-0)
- 3,3-Difluoro-3-(4-fluorophenyl)-2-hydroxypropionic acid (CAS 541508-26-3)
- 2-(4-Bromo-3-methylbutanamido)acetic acid (CAS 52574-83-1)
- Boc-Val-Leu-Gly-Arg-pNA (CAS 68223-95-0)
- 1-(4-Bromophenyl)-2-(cyclohexylthio)ethan-1-one (CAS 331461-92-8)
- 8-(tert-Bbutyl)-3,4-dihydroisoquinolin-1(2H)-one (CAS 1447-47-8)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
Why CATO?
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