4-Chloro-5-ethyl-6-methylpyrimidine CAS 67434-67-7
| CAS No. | 67434-67-7 |
| Molecular Formula | C7H9ClN2 |
| Molecular Weight | 156.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-5-ethyl-6-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.
4-Chloro-5-ethyl-6-methylpyrimidine (CAS 67434-67-7) is a high-purity analytical reference standard with the molecular formula C7H9ClN2 and a molecular weight of 156.61 g/mol.
4-Chloro-5-ethyl-6-methylpyrimidine (C7H9ClN2) contains a nitrile group, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C7H9ClN2 |
| Molecular Weight | 156.61 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-2-phenylethanol (CAS 1004-99-5)
- 6-Chloro-5-ethylpyridin-2-amine (CAS 1004294-54-5)
- 4-Chloro-5-isopropylpyrimidine (CAS 1015846-32-8)
- 6-chloro-1-N-methylbenzene-1,2-diamine (CAS 102074-47-5)
- 2-chloro-3,4-dimethylphenol (CAS 10283-15-5)
- 2-Chloro-4,5,6,7-tetrahydro-1H-benzimidazole (CAS 1049127-52-7)
- 3-Chloro-N,N-dimethylpyridin-2-amine (CAS 1060801-41-3)
- 6-Chloro-N,N-dimethylpyridin-2-amine (CAS 1060801-42-4)
Recommended Standards
- 4-Chloro-5-ethyl-2-methylpyrimidine (CAS 959239-71-5)
- 4-Chloro-5-methylbenzene-1,2-diamine (CAS 63155-04-4)
- 4-Chloro-3-methyl-o-phenylenediamine (CAS 673487-36-0)
- 4-Chloro-5-propylpyrimidine (CAS 25199-00-2)
- 2-[3-(2-Amino-4-thiazolyl)phenoxy]acetic Acid (CAS 1082128-37-7)
- N,N'-Dimethyl-Sulfamide (CAS 22504-72-9)
- 2-Amino-1-(2-methoxyphenyl)ethan-1-one hydrochloride (CAS 34589-97-4)
- 4-Methyl-6-(trifluoromethyl)pyridin-3-amine (CAS 944317-54-8)
- 2-Methoxy-3-(trifluoromethyl)benzyl bromide (CAS 1017778-77-6)
- (R)-2-(2-Benzylpiperazin-1-yl)acetic acid (CAS 1240586-76-8)
- 874908-44-8 3-Cyclohexyl-1H-pyrazole-4-carboxylic acid MFCD09864308 (CAS 874908-44-8)
- Risdiplam Impurity 4 (CAS CATO-C4X-30124)
- 2-(3-fluorophenyl)-2-methylcyclopropan-1-amine hydrochloride (CAS 1803594-32-2)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
Why CATO?
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