4,4'-(Chloromethylene)bis(methoxybenzene) CAS 7525-23-7
| CAS No. | 7525-23-7 |
| Molecular Formula | C15H15ClO2 |
| Molecular Weight | 262.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,4'-(Chloromethylene)bis(methoxybenzene) is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4,4'-(Chloromethylene)bis(methoxybenzene) (CAS 7525-23-7), a certified reference material (molecular formula C15H15ClO2, MW 262.73 g/mol) for analytical method development and quality control.
Structurally, 4,4'-(Chloromethylene)bis(methoxybenzene) (C15H15ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic 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 262.73 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C15H15ClO2 |
| Molecular Weight | 262.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
Related Chloromethylene Standards
- 4,4-(Chloromethylene)bis(chlorobenzene) (CAS 782-08-1)
- 2,2'-(Chloromethylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 2831415-88-2)
- (E)-4-(Chloromethylene)-2-phenyloxazol-5(4H)-one (CAS 89363-85-9)
- (Z)-4-(Chloromethylene)-2-phenyloxazol-5(4H)-one (CAS 89363-86-0)
- (chloromethylene)bis(trimethylsilane) 5926-35-2 Bis(trimethylsilyl)methyl chloride (CAS 5926-35-2)
Recommended Standards
- 4-(6-Chloro-4-methylquinolin-2-yl)morpholine (CAS 34500-49-7)
- 4-Chloro-n-(1-cyanocyclohexyl)benzamide (CAS 912771-01-8)
- 3-Chlorochrysene (CAS 36288-21-8)
- 5-Chloro-1-methyl-3-phenyl-4-[(prop-2-en-1-yloxy)methyl]-1H-pyrazole (CAS 318248-38-3)
- Methyl 3-bromo-4-ethoxybenzoate (CAS 24507-28-6)
- 2-((4-Oxoquinazolin-3(4H)-yl)methyl)benzoic acid (CAS 923018-95-5)
- 4-Chloro-1-(2-ethylcyclohexyl)-1h-pyrazol-3-amine (CAS 1339011-85-6)
- 2-(3-Fluoro-4-(pentyloxy)phenyl)ethan-1-ol (CAS 1443303-62-5)
- n-(Cyclopropylmethyl)-3,5-dimethylaniline (CAS 356539-49-6)
- Raltitrexed Impurity 34 (CAS CATO-C4X-138634)
- Ranolazine Impurity 7 (CAS 5294-61-1)
- (1-Tosyl-1H-pyrrolo[2,3-b]pyridin-4-yl)boronic acid (CAS 1310556-95-6)
- 2-(Pyridin-4-yl)-4H-chromen-4-one (CAS 3034-16-0)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
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