(((5-(Difluoromethyl)-1,3-phenylene)bis(oxy))bis(methylene))dibenzene CAS 2149601-37-4
| CAS No. | 2149601-37-4 |
| Molecular Formula | C21H18F2O2 |
| Molecular Weight | 340.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (((5-(Difluoromethyl)-1,3-phenylene)bis(oxy))bis(methylene))dibenzene (CAS 2149601-37-4), a certified reference material (molecular formula C21H18F2O2, MW 340.36 g/mol) for analytical method development and quality control.
Structurally, (((5-(Difluoromethyl)-1,3-phenylene)bis(oxy))bis(methylene))dibenzene (C21H18F2O2) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 340.36 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), (((5-(Difluoromethyl)-1,3-phenylene)bis(oxy))bis(methylene))dibenzene 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 | C21H18F2O2 |
| Molecular Weight | 340.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
Related Difluoromethyl Standards
- (R)-1-(4-(Difluoromethyl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indol-6-yl)ethan-1-amine (CAS 2641906-80-9)
- 3-(Difluoromethyl)-5-((2-nitro-4-(trifluoromethyl)phenyl)thio)-4H-1,2,4-triazole (CAS 1706454-87-6)
- 4-(Difluoromethyl)-5-fluoro-3-iodo-2-(trifluoromethyl)pyridine (CAS 1805048-91-2)
- 4-(Difluoromethyl)-2-fluoro-5-iodo-3-(trifluoromethyl)pyridine (CAS 1805193-20-7)
- 4-(Difluoromethyl)-5-fluoro-2-iodo-3-(trifluoromethyl)pyridine (CAS 1805193-24-1)
- 4-(Difluoromethyl)-3-fluoro-2-iodo-5-(trifluoromethyl)pyridine (CAS 1805482-13-6)
- 2-(Difluoromethyl)-6-iodo-5-nitropyridine-3-acetonitrile (CAS 1805539-37-0)
- 2-(Difluoromethyl)-4-iodo-3-nitropyridine-6-acetonitrile (CAS 1806861-61-9)
Recommended Standards
- (2E)-3-(Dimethylamino)-1-{4-methyl-2-[3-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}prop-2-en-1-one (CAS 1598370-02-5)
- (2E)-3-(Dimethylamino)-1-{4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}prop-2-en-1-one (CAS 499796-73-5)
- 6-(Diphenylphosphino)-2,2'-bipyridine (CAS 152194-39-3)
- 1-(2-Methoxyphenyl)-3-(3-(trifluoromethyl)benzyl)thiourea (CAS 931231-37-7)
- (S)-2-((S)-1-((S)-2,6-Diaminohexanoyl)pyrrolidine-2-carboxamido)pentanedioic acid (CAS 103216-99-5)
- (4-(1-Methyl-1H-imidazol-2-yl)phenyl)boronic acid (CAS 1310383-27-7)
- 2-Cyclopropoxy-N1,N1,N4,N4-tetramethylterephthalamide (CAS 1243405-34-6)
- (4-Fluorophenyl)(5-hydroxybenzofuran-3-yl)methanone (CAS 312513-28-3)
- Alanyl Glutamine Impurity 4 (CAS CATO-C4X-19744)
- (4AR,6S,7R,8S,8aR)-6-hydroxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxine-7,8-diyl diacetate (CAS 104186-84-7)
- 2-(3-Fluoro-4-methoxyphenyl)thiazole-4-carboxylic acid (CAS 1368573-12-9)
- 2-(n-Methylnaphthalene-2-sulfonamido)acetic acid (CAS 123760-47-4)
- 5-(2-Anilinovinyl)-3-(2,6-dichlorophenyl)-4-isoxazolecarbonitrile (CAS 338394-19-7)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
Why CATO?
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