1-(3,4-Dichlorophenyl)-3-(4-((2-(diethylamino)propyl)amino)-6-methylpyrimidin-2-yl)guanidine CAS 51386-98-2
| CAS No. | 51386-98-2 |
| Molecular Formula | C19H27Cl2N7 |
| Molecular Weight | 424.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(3,4-Dichlorophenyl)-3-(4-((2-(diethylamino)propyl)amino)-6-methylpyrimidin-2-yl)guanidine (CAS 51386-98-2) is a high-purity analytical reference standard with the molecular formula C19H27Cl2N7 and a molecular weight of 424.37 g/mol.
1-(3,4-Dichlorophenyl)-3-(4-((2-(diethylamino)propyl)amino)-6-methylpyrimidin-2-yl)guanidine (C19H27Cl2N7) contains a nitrogen-containing heterocyclic scaffold, 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. 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).
As a certified reference material (CRM), 1-(3,4-Dichlorophenyl)-3-(4-((2-(diethylamino)propyl)amino)-6-methylpyrimidin-2-yl)guanidine 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 | C19H27Cl2N7 |
| Molecular Weight | 424.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
Related Dichlorophenyl Standards
- (5E)-5-({4-[(2,4-dichlorophenyl)methoxy]phenyl}methylidene)-3-ethyl-2-sulfanylidene-1,3-thiazolidin-4-one (CAS 299909-27-6)
- 3-(2,4-Dichlorophenyl)-4-(p-tolyl)-5-((p-tolyloxy)methyl)-4H-1,2,4-triazole (CAS 141079-03-0)
- N-(3,4-dichlorophenyl)-2-(2-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)acetyl)hydrazine-1-carboxamide (CAS 1024244-52-7)
- (4Z)-2-[(2,4-Dichlorophenyl)methoxy]-4-(phenylmethylidene)-1,2,3,4-tetrahydroisoquinoline-1,3-dione (CAS 338396-49-9)
- 4-((1-((2,4-Dichlorophenyl)amino)-4,4-dimethyl-1,3-dioxopentan-2-yl)oxy)benzoic acid (CAS 58161-93-6)
- 7-[5-(2,4-Dichlorophenyl)furan-2-yl]-3-(4-fluorophenyl)pyrazolo[1,5-a]pyrimidine (CAS 685107-24-8)
- 3-{1-[(2,6-dichlorophenyl)methyl]-6-oxo-1,6-dihydropyridin-3-yl}-1-(3,4-difluorophenyl)urea (CAS 338784-71-7)
- 3-(2,6-Dichlorophenyl)-5-[(E)-2-{[2-(trifluoromethyl)phenyl]amino}ethenyl]-1,2-oxazole-4-carbonitrile (CAS 338402-67-8)
Recommended Standards
- Sodium Cromoglicate Impurity 27 (CAS CATO-C4X-201127)
- 1,4-Bis(iodomethyl)-Benzene (CAS 30362-89-1)
- Sodium Cromoglicate Impurity 18 (CAS CATO-C4X-201118)
- Morniflumate Impurity 1 (CAS CATO-C4X-30731)
- 2,2-Difluoro-4-phenylbutanoic acid (CAS 142977-63-7)
- tert-butyl 4-[3-(dimethylamino)-1,2,4-oxadiazol-5-yl]piperidine-1-carboxylate (CAS 1803580-77-9)
- N-Methyl-1-(methylsulfonyl)piperidin-3-amine hydrochloride (CAS 1956306-72-1)
- N-Methyl-N-(3-methyl-1,2,4-thiadiazol-5-yl)-2-phenylacetamide (CAS 62347-31-3)
- 5-[4-(Methylsulfonamido)phenyl]-2H-tetrazole (CAS 1261268-83-0)
- (6-Bromo-3-chloro-2-(difluoromethyl)pyridin-4-yl)methanamine (CAS 1806032-16-5)
- 1-(3-Bromobut-3-en-1-yl)-4-(tert-butyl)benzene (CAS 1049130-96-2)
- 4-Bromo-1-methyl-3-((2,2,2-trifluoroethoxy)methyl)-1H-pyrazole (CAS 1856025-91-6)
- 2α-Methyl Gibberellin A4 (CAS 121709-23-7)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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