3,3-Bis(4-chlorobenzyl)pentane-2,4-dione CAS 130745-77-6
| CAS No. | 130745-77-6 |
| Molecular Formula | C19H18Cl2O2 |
| Molecular Weight | 349.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3,3-Bis(4-chlorobenzyl)pentane-2,4-dione 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.
3,3-Bis(4-chlorobenzyl)pentane-2,4-dione (CAS 130745-77-6), molecular formula C19H18Cl2O2 and molecular weight 349.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,3-Bis(4-chlorobenzyl)pentane-2,4-dione (C19H18Cl2O2) is characterized by a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C19H18Cl2O2 |
| Molecular Weight | 349.25 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
Related Bis Standards
- N-(2-Chlorobenzyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide (CAS 2034239-04-6)
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- 1-((3-Chlorobenzyl)oxy)-2-(p-tolyl)-1H-imidazo[4,5-b]pyridine (CAS 339026-90-3)
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- 3-((3-Chlorobenzyl)thio)-5-(3-methoxy-1-methyl-1H-pyrazol-4-yl)-4-methyl-4H-1,2,4-triazole (CAS 1014093-18-5)
Recommended Standards
- 5-(4-Bromophenyl)-1-(furan-2-ylmethyl)-2-(methylthio)-1H-imidazole (CAS 1206986-38-0)
- 4-(5-Bromo-pyrazin-2-yl)-piperidine-1-sulfonic acid dimethylamide (CAS 1316219-30-3)
- N,N'-(1,3,4-Thiadiazole-2,5-diyl)bis(N-(2-chloroallyl)acetamide) (CAS 61784-95-0)
- 5-Bromo-N,N-dimethyl-4-(piperazin-1-yl)pyridine-3-sulfonamide (CAS 1352499-52-5)
- (4-((Dimethylamino)methyl)phenyl)methanol (CAS 13990-98-2)
- 1-((4-Nitrobenzyl)oxy)urea (CAS 31150-87-5)
- 3-(4-Fluorophenyl)-1,2,4-oxadiazol-5-amine (CAS 1219584-94-7)
- 4-Methoxy-6-methyl-1H-pyrrolo[3,2-c]pyridine (CAS 1190320-88-7)
- rel-(4R,5S)-2,4,5-Trimethyl-4,5-dihydrothiazole (CAS 23236-43-3)
- (4-(1-Methyl-1H-pyrazol-4-yl)thiazol-2-yl)methanol (CAS 1339761-12-4)
- tert-butyl (S)-3-(isopropylamino)pyrrolidine-1-carboxylate (CAS 820969-25-3)
- 2-Amino-9-((2-hydroxyethoxy)methyl)-8-iodo-1H-purin-6(9H)-one (CAS 91897-99-3)
- Phytanic acid (CAS 14721-66-5)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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