1,2-Bis(chloromethyl)-3,4,5,6-tetramethylbenzene CAS 29002-55-9
| CAS No. | 29002-55-9 |
| Molecular Formula | C12H16Cl2 |
| Molecular Weight | 231.16 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 1,2-Bis(chloromethyl)-3,4,5,6-tetramethylbenzene.
1,2-Bis(chloromethyl)-3,4,5,6-tetramethylbenzene (CAS 29002-55-9), molecular formula C12H16Cl2 and molecular weight 231.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to chlorine substitution, an aromatic ring system, 1,2-Bis(chloromethyl)-3,4,5,6-tetramethylbenzene is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 231.16 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.
As a certified reference material (CRM), 1,2-Bis(chloromethyl)-3,4,5,6-tetramethylbenzene 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 | C12H16Cl2 |
| Molecular Weight | 231.16 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.) | 1965 |
| Halogen Content | Cl-containing |
Related Bis Standards
- 3,6-Bis(chloromethyl)durene (CAS 3022-16-0)
- 1,3-Bis(chloromethyl)tetramethyldisiloxane (CAS 2362-10-9)
- 1-[4-(chloromethyl)phenyl]-3,5-dimethyl-1H-pyrazole (CAS 956508-17-1)
- 4-(Chloromethyl)-1,2-diphenylethane, 98% (CAS 80676-35-3)
- Chloromethyl (4-nitrophenyl) carbonate (CAS 50780-50-2)
- N-[4-(Chloromethyl)-1,3-thiazol-2-yl]-N-cyclopropylacetamide (CAS 1306603-84-8)
- 5-(Chloromethyl)-2-(2,2,2-trifluoroethoxy)thiazole (CAS 1462380-20-6)
- 1-[2-(Chloromethyl)Phenyl]-3,3-Difluoroazetidin-2-One (CAS 131230-67-6)
Recommended Standards
- 2,3-Difluoro-6-trifluoromethylbenzamide (CAS 186517-26-0)
- 1,3-Dioxoisoindolin-2-yl 2-diazoacetate (CAS 816437-80-6)
- 2-(Difluoromethyl)-3-methyl-5-nitropyridine-6-carboxamide (CAS 1807000-83-4)
- 1,5-Dichloro-2,4-diisopropylbenzene (CAS 65432-05-5)
- N-(3,5-Dichlorophenyl)-2-[(6-acetamidopyridin-3-yl)sulfanyl]pyridine-3-carboxamide (CAS 343373-16-0)
- 4-(1,3-Dithian-2-yl)benzoic acid (CAS 168165-88-6)
- [(1-benzyl-1h-pyrazol-4-yl)methyl](propan-2-yl)amine (CAS 1153115-77-5)
- 5-(3,4-Dimethoxyphenyl)-3-hydroxy-4-(5-methylfuran-2-carbonyl)-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 439947-71-4)
- 1-methanesulfonyl-N-methylpiperidin-4-amine (CAS 438585-61-6)
- 6,7-Dimethoxy-1-(4-(trifluoromethyl)phenethyl)-1,2,3,4-tetrahydroisoquinoline (CAS 769172-75-0)
- 9-cis-Retinoyl β-D-glucuronide (CAS 153321-67-6)
- 4-Phenyl-1,3-benzothiazol-2-amine (CAS 21418-32-6)
- tert-Butyl 4-(3-chloro-4-fluorophenyl)piperazine-1-carboxylate (CAS 951626-70-3)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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