4-Chloro-2-methyl-1H-imidazole CAS 16265-06-8
| CAS No. | 16265-06-8 |
| Molecular Formula | C4H5ClN2 |
| Molecular Weight | 116.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-2-methyl-1H-imidazole 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.
4-Chloro-2-methyl-1H-imidazole (CAS 16265-06-8), molecular formula C4H5ClN2 and molecular weight 116.55 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Chloro-2-methyl-1H-imidazole (C4H5ClN2) is characterized by a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H5ClN2 |
| Molecular Weight | 116.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 1092682-87-5 4-CHLORO-3-METHYL-1H-PYRAZOLE SC-32661 (CAS 1092682-87-5)
- 3-Chloro-4-methyl-1H-pyrazole (CAS 134589-56-3)
- 4-Chloro-3-methyl-1H-pyrazole (CAS 15878-08-7)
- 5-Chloro-3-methyl-1H-pyrazole (CAS 15953-45-4)
- 2-Chloro-5-methyl-1h-imidazole (CAS 909086-61-9)
- 3-Chloro-1-methyl-1H-pyrazole (CAS 63425-54-7)
- 4-Chloro-1-methylpyrazole (CAS 35852-81-4)
- 5-Chloro-1-methyl-1H-pyrazole (CAS 42110-76-9)
Recommended Standards
- 1-(Chloromethyl)-1H-pyrazole (CAS 84968-04-7)
- 2-(Chloromethyl)-1H-imidazole (CAS 40403-72-3)
- 3-(Chloromethyl)furan (CAS 14497-29-1)
- 2-Chloromethylfuran (CAS 617-88-9)
- methyl 5-(2-cyanophenyl)-1H-pyrazole-3-carboxylate (CAS 1035235-09-6)
- 8-Chloro-2-(4-propoxyphenyl)quinoline-4-carbonyl chloride (CAS 1160263-77-3)
- 4-(3,4-Dihydroquinolin-1(2H)-yl)-4-oxobutanoic acid (CAS 349644-03-7)
- 2-Methyl-4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine dihydrochloride (CAS 774178-09-5)
- Boc-N-Amido-PEG3-azide (CAS 642091-68-7)
- tert-butyl 6-formyl-1,4-oxazepane-4-carboxylate (CAS 1269755-59-0)
- 5-(Ethylamino)-2,3-dihydro-1h-1,3-benzodiazol-2-one (CAS 1038266-62-4)
- (Pyridin-2-yl)methyl 6-(benzylcarbamoyl)-4-(trifluoromethyl)pyridine-2-carboxylate (CAS 1209118-44-4)
- (R)-L 888607 (CAS 2446042-90-4)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
Why CATO?
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