Pcb No. 145 CAS 74472-40-5
| CAS No. | 74472-40-5 |
| Molecular Formula | C12H4Cl6 |
| Molecular Weight | 360.88 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. 145.
CATO supplies Pcb No. 145 (CAS 74472-40-5), a certified reference material (molecular formula C12H4Cl6, MW 360.88 g/mol) for analytical method development and quality control.
Owing to chlorine substitution, an aromatic ring system, Pcb No. 145 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 360.88 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Pcb No. 145 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H4Cl6 |
| Molecular Weight | 360.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 10μg/mL in Isooctane |
| 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.) | 1978 |
| Halogen Content | Cl-containing |
Recommended Standards
- Pcb No. 169 (CAS 32774-16-6)
- 5-Chloro-4-(piperazin-1-yl)-N,N-dipropylpyridine-3-sulfonamide (CAS 1352531-32-8)
- Pcb No. 168 (CAS 59291-65-5)
- 1-((4-Chlorophenyl)sulfonyl)-4-((diethylamino)methyl)piperidin-4-ol (CAS 478041-66-6)
- 1-[4-cyclopropyl-6-(trifluoromethyl)pyrimidin-2-yl]piperidin-4-amine (CAS 1018143-59-3)
- Ethylene-d4-diamine 2HCl (CAS 34334-71-9)
- n-(2-Fluorobenzyl)-3-methylbutan-1-amine (CAS 247907-27-3)
- (Trp4)-Kemptide (CAS 80224-16-4)
- IMIDAZO[1,2-C]PYRIMIDINE-3-CARBOXYLIC ACID ETHYL ESTER (CAS 1289075-53-1)
- (2R)-2-Azetidinemethanol HCl (1:1) (CAS 935668-80-7)
- dimethyl-1H-1,2,4-triazol-5-amine hydroiodide (CAS 1461709-07-8)
- 4-Nitrophenyl 2-O-(2-3-4-6-tetra-O-acetyl-β-D-glucopyranosyl)-4-6-O-benzylidene-β-D-glucopyranoside (CAS 26255-68-5)
- N-(1-Phenylethyl)-2-(pyrimidin-2-ylamino)thiazole-4-carboxamide (CAS 1251563-27-5)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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