4-Methylpyrimidine-2,5-diamine CAS 89181-77-1
| CAS No. | 89181-77-1 |
| Molecular Formula | C5H8N4 |
| Molecular Weight | 124.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methylpyrimidine-2,5-diamine (CAS 89181-77-1), molecular formula C5H8N4 and molecular weight 124.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, 4-Methylpyrimidine-2,5-diamine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 124.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 4-Methylpyrimidine-2,5-diamine 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 | C5H8N4 |
| Molecular Weight | 124.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 4 |
Related Methylpyrimidine Standards
- N4-methylpyrimidine-2,4-diamine (CAS 1004-18-8)
- 2-n-Methylpyrimidine-2,5-diamine (CAS 1187968-65-5)
- N4-Methylpyrimidine-4,5-diamine (CAS 13784-17-3)
- N5-Methylpyrimidine-2,5-diamine (CAS 1557476-17-1)
- 2-Methylpyrimidine-4,5-diamine (CAS 15579-63-2)
- 5-Methylpyrimidine-4,6-diamine (CAS 162706-07-2)
- 5-Methylpyrimidine-2,4-diamine (CAS 18588-37-9)
- 2-Methylpyrimidine-4,6-diamine (CAS 197165-78-9)
Recommended Standards
- 4-Hydrazinyl-6-methylpyrimidine (CAS 33592-43-7)
- 4-N-methylpyrimidine-4,6-diamine (CAS 66131-69-9)
- 4-Hydrazinyl-5-methylpyrimidine (CAS 69142-10-5)
- 5-(Aminomethyl)pyrimidin-2-amine (CAS 672324-80-0)
- 2,2-Diethoxyethanethioamide (CAS 73956-15-7)
- 3-(methoxy-d3)aniline (CAS 1820607-08-6)
- 3-(2-Aminoethyl)oxazolidine-2,4-dione hydrochloride (CAS 1824268-91-8)
- 3-(3,4-Difluorophenyl)butan-2-ol (CAS 1528714-87-5)
- 2-(4-(Trifluoromethyl)phenyl)pyrazine (CAS 380626-88-0)
- 3-(4-Chlorophenyl)-3-hydroxy-2-methylpropanenitrile (CAS 831239-10-2)
- 4'-Methoxy-[1,1'-biphenyl]-2-carboxylicacid (CAS 18110-71-9)
- 1-(1-Ethylpiperidin-3-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707563-17-4)
- 4-(((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)amino)benzoic acid (CAS 62001-43-8)
- Fibrinogen Related Peptide (CAS 80755-86-8)
Why CATO?
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