5-chloro-4-methylpyrimidine CAS 54198-82-2
| CAS No. | 54198-82-2 |
| Molecular Formula | C5H11ClN2 |
| Molecular Weight | 134.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 134.61 g/mol gives 5-chloro-4-methylpyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-chloro-4-methylpyrimidine (CAS 54198-82-2) is a high-purity analytical reference standard with the molecular formula C5H11ClN2 and a molecular weight of 134.61 g/mol.
Owing to chlorine substitution, 5-chloro-4-methylpyrimidine is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 5-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 | C5H11ClN2 |
| Molecular Weight | 134.61 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- 3-Chloro-6-methylpyridazine (CAS 1121-79-5)
- 3-chloro-1-ethyl-pyrazole (CAS 1254309-82-4)
- 2-Chloro-6-methyl-1,4-diazine 2-chloro-6-methyl-pyrazine 2-chloro-6-methylpyrazine 38557-71-0 (CAS 38557-71-0)
- 4-Chloro-2-methyltetrahydro-2H-pyran (CAS 116131-46-5)
- 5-Chloro-3-methyl-2-pentanone (CAS 1187-81-1)
- 4-chloro-3,3-dimethylbutan-2-one (CAS 13104-53-5)
- 2-Chloro-3,3-dimethylbutanal (CAS 13422-65-6)
- (S)-1-Chloro-5-hexen-2-ol (CAS 1374009-33-2)
Recommended Standards
- 5-(chloromethyl)-1-methyl-imidazole (CAS 89180-90-5)
- 5-Chloropentanimidamide (CAS 775555-06-1)
- 5-(chloromethyl)-1-methyl-1H-pyrazole (CAS 84547-63-7)
- 20511-15-3 3-Amino-4-chloropyridine 4-chloro-3-amino pyridine 4-chloro-3-pyridinamine 4-chloro-pyridin-3-ylamine 4-chloropyridin-3-amine 4-chloropyridin-3-ylamine (CAS 20511-15-3)
- Methyl 6-bromo-2-chloro-3-methoxybenzoate (CAS 750586-08-4)
- 6-Cyano-5-(difluoromethyl)-3-nitropicolinoyl chloride (CAS 1806993-01-0)
- (2E)-1-(2-Chlorophenyl)-3-(2-fluorophenyl)prop-2-en-1-one (CAS 1193328-07-2)
- 1-(3-(3,4-Dimethoxyphenyl)isoxazol-5-yl)ethanone (CAS 151671-43-1)
- Benzyl 6-hydroxy-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 185057-06-1)
- 6-Bromo-3-cyclopropoxy-2-(trifluoromethyl)pyridine (CAS 1243404-05-8)
- Ataluren Impurity 1 (CAS CATO-C4X-30068)
- 2-Bromo-N-ethylbenzamide (CAS 80031-02-3)
- 5-(4-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde (CAS 321848-47-9)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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