1,3,5-Tris(chloromethyl)-2,4-dimethylbenzene CAS 2903-00-6
| CAS No. | 2903-00-6 |
| Molecular Formula | C11H13Cl3 |
| Molecular Weight | 251.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3,5-Tris(chloromethyl)-2,4-dimethylbenzene (CAS 2903-00-6) is a high-purity analytical reference standard with the molecular formula C11H13Cl3 and a molecular weight of 251.58 g/mol.
Owing to chlorine substitution, an aromatic ring system, 1,3,5-Tris(chloromethyl)-2,4-dimethylbenzene is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 251.58 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.
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 | C11H13Cl3 |
| Molecular Weight | 251.58 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 1-(tert-butyl)-4-(trichloromethyl)benzene (CAS 153357-88-1)
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- 1-[(2-bromoethyl)sulfanyl]-3-chlorobenzene (CAS 3983-71-9)
- 5-Chloro-3-methyl-7-(trifluoromethyl)benzo[d]oxazol-2(3H)-one (CAS 1267061-04-0)
- 3-(2-Methyl-1H-indol-3-yl)propan-1-amine (CAS 19017-54-0)
- 5-Fluoro-1-iodoisoquinoline (CAS 1207448-31-4)
- Fmoc-N-Me-D-Ala-OH (CAS 138774-92-2)
- [S(R)]-N-[(R)-[6-(Diphenylphosphino)benzo[d][1,3]dioxol-5-yl]-1-naphthalenylmethyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2565792-42-7)
- (S)-2-methoxy-1-(m-tolyl)ethan-1-amine (CAS 1270272-72-4)
- 5-Methyl-N-(3-(methylthio)phenyl)isoxazole-4-carboxamide (CAS 61643-42-3)
- 3-(Heptafluoropropyl)-1h-pyrazole (CAS 158148-63-1)
- Sodium 4-Hydroxy-3-Nitrosonaphthalene-1-Sulfonate (CAS 878769-10-9)
- 3-((Perfluoroethyl)thio)propan-1-amine hydrochloride (CAS 1286743-87-0)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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