4-(1H-Pyrazol-4-yl)pyrimidine CAS 28648-87-5
| CAS No. | 28648-87-5 |
| Molecular Formula | C7H10N4 |
| Molecular Weight | 150.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-(1H-Pyrazol-4-yl)pyrimidine (C7H10N4) is characterized by a nitrile group, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-(1H-Pyrazol-4-yl)pyrimidine (CAS 28648-87-5), molecular formula C7H10N4 and molecular weight 150.18 g/mol, is a CATO reference standard with documented purity and traceability.
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-(1H-Pyrazol-4-yl)pyrimidine 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 | C7H10N4 |
| Molecular Weight | 150.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 4 |
Related H Standards
- 3-(1h-Pyrazol-4-yl)isoxazol-5-amine (CAS 1342714-34-4)
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- 3-(1H-Pyrazol-1-yl)-4H-1,2,4-triazol-4-amine (CAS 385377-16-2)
- 5-(1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-amine (CAS 73631-22-8)
- 1-(1H-Pyrazol-5-yl)pyrrolidin-2-one (CAS 786700-16-1)
- 3-(1H-pyrazol-1-yl)pentanenitrile (CAS 1152915-18-8)
- 5-(1h-Pyrazol-1-yl)pentanenitrile (CAS 1248790-67-1)
- 2-(1H-Pyrazol-4-yl)-1,3-thiazole (CAS 1228558-14-2)
Recommended Standards
- 3-oxo-8-azabicyclo[3.2.1]octane-8-carbonitrile (CAS 90006-89-6)
- 4-(1-Methyl-1H-imidazol-2-yl)but-3-en-2-one (CAS 667939-97-1)
- 3-Methyl-6,7-dihydropyrrolo[1,2-c]pyrimidin-1(5H)-one (CAS 92224-32-3)
- 4-(2,5-Dimethoxybenzoyl)benzoic acid (CAS 93012-66-9)
- tert-Butyl 2-iodo-6-azaspiro[3.4]octane-6-carboxylate (CAS 2681279-36-5)
- (S,E)-2-Methyl-N-propylidenepropane-2-sulfinamide (CAS 623169-00-6)
- 1-(2-Hydroxyphenyl)-2,6-dimethylpyridin-4(1H)-one (CAS 385374-17-4)
- 1-(5-Bromo-3-(difluoromethyl)-2-methylphenyl)ethan-1-one (CAS 2092477-82-0)
- 4-Bromo-3-((tetrahydrofuran-3-yl)oxy)aniline (CAS 1698250-79-1)
- Sodium ionophore IV (CAS 172883-29-3)
- 2-Chlorocyclooctanone (CAS 4828-34-6)
- 1-(3-Morpholinopyrazin-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 1710675-01-6)
- 2-chloro-N-(4-ethyl-2,5-dioxo-4-phenylimidazolidin-1-yl)acetamide (CAS 923685-65-8)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
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