2-Chloro-4-methylpyrimidine CAS 13036-57-2
| CAS No. | 13036-57-2 |
| Molecular Formula | C5H5ClN2 |
| Molecular Weight | 128.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Chloro-4-methylpyrimidine (CAS 13036-57-2), molecular formula C5H5ClN2 and molecular weight 128.56 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H5ClN2, 2-Chloro-4-methylpyrimidine contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 128.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-Chloro-4-methylpyrimidine 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 | C5H5ClN2 |
| Molecular Weight | 128.56 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 4-chloro-3-methyl-pyridazine (CAS 101346-01-4)
- 4-Chloro-1-vinyl-1H-pyrazole (CAS 1219568-16-7)
- 2-Chloro-5-methylpyrazine (CAS 59303-10-5)
- 2-Chloro-5-methylpyrimidine (CAS 22536-61-4)
- 2-Chloro-5-vinylfuran (CAS 63269-95-4)
- 3-chloro-4-methylpyridazine (CAS 68206-04-2)
- 3-chloro-5-methylpyridazine (CAS 89283-31-8)
- 4-Chloro-5-methylpyrimidine (CAS 51957-32-5)
Recommended Standards
- Edoxaban Impurity 102 (CAS 19798-80-2)
- 5-(Chloromethyl)pyrimidine (CAS 101346-02-5)
- 2-(Chloromethyl)pyrazine (CAS 39204-47-2)
- Chloric-18O3 Acid Potassium Salt (CAS 82664-91-3)
- Methyl 2-(4-(aminomethyl)-3-methylphenyl)acetate (CAS 2170478-35-8)
- 2-Bromo-4-(3-(pyridin-2-yl)-1H-pyrazol-4-yl)pyridine (CAS 446880-81-5)
- 5-(3-Methylpiperidin-1-yl)pyridin-2-amine (CAS 1018505-63-9)
- Ethyl 2-(3-(4-chlorophenyl)propanoyl)benzoate (CAS 898787-72-9)
- 2-Methylphenethyl Alcohol (CAS 19819-98-8)
- 4-Chloro-2-((4-methoxybenzyl)oxy)pyridine (CAS 1346707-14-9)
- N-(2-(2-(methylsulfonyl)ethoxy)ethyl)thietan-3-amine (CAS 1882217-34-6)
- 1,2,3,8,9-Pentachlorodibenzofuran (CAS 83704-54-5)
- (2,2-Dimethylpentan-3-yl)hydrazine hydrochloride (CAS 1159812-08-4)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
Why CATO?
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