5-(3-Amino-4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine CAS 24851-19-2
| CAS No. | 24851-19-2 |
| Molecular Formula | C12H14ClN5 |
| Molecular Weight | 263.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(3-Amino-4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine (CAS 24851-19-2), molecular formula C12H14ClN5 and molecular weight 263.73 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H14ClN5, 5-(3-Amino-4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.73 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-(3-Amino-4-chlorophenyl)-6-ethylpyrimidine-2,4-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 | C12H14ClN5 |
| Molecular Weight | 263.73 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Amino Standards
- methyl 4-amino-2-(chloromethyl)-6-methylfuro[2,3-d]pyrimidine-5-carboxylate (CAS 1000933-85-6)
- 4-Amino-5-chloro-N,N-diethylpyridine-3-sulfonamide (CAS 1352485-78-9)
- 2-Amino-9-chloro-4H-[1,3]thiazino[5,6-c]quinolin-4-one (CAS 1015560-19-6)
- 2-Amino-1-(3-chloro-2-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094279-46-5)
- 2-Amino-1-(2-chloro-4-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094328-08-1)
- 2-Amino-1-(5-chloro-2-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1154195-46-6)
- 2-Amino-1-(4-chloro-2-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1275402-33-9)
- 2-Amino-1-(4-chloro-3-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1308610-67-4)
Recommended Standards
- 2-Chloro-4-(4-methylpiperazin-1-yl)pyrido[3,2-d]pyrimidine (CAS 1542141-93-4)
- 6-(Chloromethyl)-2-n-(2-ethylphenyl)-1,3,5-triazine-2,4-diamine (CAS 730951-00-5)
- 3-{[(5-chloro-1,2,3-thiadiazol-4-yl)methyl]sulfanyl}-4-methyl-4,5-dihydro-1h-1,2,4-triazol-5-one (CAS 1249500-54-6)
- 6-(Chloromethyl)-N2-(2,4-dimethylphenyl)-1,3,5-triazine-2,4-diamine (CAS 444081-49-6)
- 5-Chloro-2-iodo-N-isopropylbenzamide (CAS 1147836-22-3)
- 5-Bromo-4-isopropylpyrimidine (CAS 951884-28-9)
- 2-(3-Methoxyphenyl)-2-(piperidin-1-yl)ethanol (CAS 1226093-02-2)
- 6,8-Dibromo-3-(o-tolylsulfonyl)quinolin-2-amine (CAS 861210-88-0)
- PMPA (NMDA antagonist) (CAS 113919-36-1)
- 2,5-Dimethylpyrazolidin-3-one (CAS 54945-11-8)
- 6-chloro-2-methylquinoline-4-carboxylic acid (CAS 436087-49-9)
- (1,3,4-trimethylpiperazin-2-yl)methanamine (CAS 1820717-74-5)
- 4-Cyclopentylmorpholine-3-carboxylic acid (CAS 1316219-11-0)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com