6-Methylpyrimidine-2,4-diamine hydrochloride CAS 223672-28-4
| CAS No. | 223672-28-4 |
| Molecular Formula | C5H8N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Methylpyrimidine-2,4-diamine hydrochloride (CAS 223672-28-4), molecular formula C5H8N4HCl and molecular weight 160.60 g/mol, is a CATO reference standard with documented purity and traceability.
6-Methylpyrimidine-2,4-diamine hydrochloride (C5H8N4HCl) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C5H8N4 HCl |
| Molecular Weight | 160.60 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Methylpyrimidine Standards
- 2-methylpyrimidine-4-carbaldehyde (CAS 1004-17-7)
- N4-methylpyrimidine-2,4-diamine (CAS 1004-18-8)
- 3-Ethyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 1006-24-2)
- 5-Ethyl-4-methylpyrimidine (CAS 100868-34-6)
- 2-Methylpyrimidine-5-boronic Acid (CAS 1034924-06-5)
- 2-Methylpyrimidine-5-boronic Acid Pinacol Ester (CAS 1052686-67-5)
- 5-Ethyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 10606-53-8)
- 6-Methylpyrimidine-4-carbaldehyde (CAS 1073-53-6)
Recommended Standards
- N-(1-(Pyrazin-2-yl)ethyl)cyclopropanamine (CAS 1185542-82-8)
- 5-Bromo-1,3,4-thiadiazole-2-carbonitrile (CAS 916889-37-7)
- (R)-2-(((tert-Butoxycarbonyl)amino)methyl)-4-methylpentanoic acid (CAS 132605-96-0)
- tert-Butyl 2-(methylsulfonyl)-5,7-dihydrospiro[pyrano[4,3-d]pyrimidine-8,3'-pyrrolidine]-1'-carboxylate (CAS 1330764-07-2)
- 4-Hydroxy-3-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 1245457-03-7)
- (1-(4-Chloro-6-methylpyrimidin-2-yl)piperidin-3-yl)methanol (CAS 1261231-61-1)
- 2-[(4-methoxyÂ-3,5-dimethyl-2-pyridinylÂ)-methylÂthio]-5-(oxazolin-2-yl)-benzÂimidazole (CAS 116091-77-1)
- (S)-3-amino-1-isopropylpyrrolidin-2-one (CAS 1355040-67-3)
- 4-Methyl-5,6-dihydro-4H-pyrrolo[3,2,1-de]pteridine (CAS 172982-69-3)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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