5-Chloro-2-methylimidazo[1,2-a]pyrazine CAS 1289082-44-5
| CAS No. | 1289082-44-5 |
| Molecular Formula | C7H6ClN3 |
| Molecular Weight | 167.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-2-methylimidazo[1,2-a]pyrazine is closely related to a nitrile group, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Chloro-2-methylimidazo[1,2-a]pyrazine (CAS 1289082-44-5), molecular formula C7H6ClN3 and molecular weight 167.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6ClN3, 5-Chloro-2-methylimidazo[1,2-a]pyrazine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 167.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H6ClN3 |
| Molecular Weight | 167.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1000340-38-4)
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1000340-80-6)
- 5-Chloro-1H-pyrrolo[3,2-b]pyridin-7-amine (CAS 1000577-90-1)
- 5-Chloro-1H-indazol-6-amine (CAS 100960-35-8)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1020036-37-6)
- 7-Chloro-1H-benzo[d]imidazol-5-amine (CAS 10597-54-3)
- 6-Chloro-1H-benzo[d]imidazol-4-amine (CAS 10597-55-4)
- 2-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1060816-67-2)
Recommended Standards
- 2-Chloro-6-methylimidazo[1,2-b]pyridazine (CAS 127566-20-5)
- 7-Chloroimidazo[1,2-a]pyridin-3-amine (CAS 1289083-20-0)
- 1-(azidomethyl)-3-chlorobenzene (CAS 126799-85-7)
- 6-Chloro-2-methylimidazo[1,2-a]pyrazine (CAS 1289151-28-5)
- 2-(Methoxymethyl)-3,4,5-triphenylfuran (CAS 106241-00-3)
- 1-(2-Fluorophenyl)-1H-imidazole-4-carboxylic acid (CAS 1250543-88-4)
- Ethyl 2-oxooxazolidine-5-carboxylate (CAS 99979-58-5)
- H-D-Tic-OH (CAS 10342-06-0)
- 8-Hydroxy-2-oxaspiro[4.5]decan-1-one (CAS 67132-92-7)
- Metronidazole EP Impurity B (CAS 3034-38-6)
- Tacrolimus Hydroxy Acid Impurity (CAS 1700657-83-5)
- 2,5-Dithioxoimidazolidine-4-carboxylic acid (CAS 872784-47-9)
- Methyl 5-oxo-5H-thiazolo[3,2-a]pyrimidine-7-carboxylate (CAS 890092-78-1)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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