5-Methyl-N-(pyridin-3-ylmethyl)-3-(p-tolyl)pyrazolo[1,5-a]pyrimidin-7-amine CAS 900885-75-8
| CAS No. | 900885-75-8 |
| Molecular Formula | C20H19N5 |
| Molecular Weight | 329.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 5-Methyl-N-(pyridin-3-ylmethyl)-3-(p-tolyl)pyrazolo[1,5-a]pyrimidin-7-amine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 329.40 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).
5-Methyl-N-(pyridin-3-ylmethyl)-3-(p-tolyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 900885-75-8), molecular formula C20H19N5 and molecular weight 329.40 g/mol, is a CATO reference standard with documented purity and traceability.
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-Methyl-N-(pyridin-3-ylmethyl)-3-(p-tolyl)pyrazolo[1,5-a]pyrimidin-7-amine 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 | C20H19N5 |
| Molecular Weight | 329.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
Recommended Standards
- 5-(1-Benzyl-5,6-dimethyl-1H-1,3-benzodiazol-2-yl)-1,2-dihydropyridin-2-one (CAS 860787-82-2)
- 6-(Benzo[c][1,2,5]thiadiazole-4-sulfonamido)hexanoic acid (CAS 313223-80-2)
- 4-(Diethylamino)-6-phenyl-2-(pyridin-2-yl)pyrimidine-5-carbonitrile (CAS 320418-14-2)
- 6-Benzyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 439128-53-7)
- (3,3-Dimethylcyclohexyl)methanol (CAS 102369-67-5)
- N-((4-Nitrophenyl)thio)acetamide (CAS 39549-16-1)
- 4-Fluoro-2-methyl-3-nitrobenzoic acid (CAS 1079991-68-6)
- 50606-95-6 Benzoyl chloride, 4-hexyl- 4-Hexylbenzoyl chloride EINECS 256-647-6 (CAS 50606-95-6)
- 1-[4-Methyl-5-(4-methylphenyl)-1,1-dioxido-isothiazol-3-yl]piperidin-4-amine hydrochloride (CAS 1417567-35-1)
- Luteolin-7-O-glucuronide (CAS 29741-10-4)
- N-(3-methoxy-4-nitrophenyl)acetamide (CAS 20628-19-7)
- methyl (1S,3S,5S)-5-methyl-2-azabicyclo[3.1.0]hexane-3-carboxylate;hydrochloride (CAS 2497594-26-8)
- 3-Fluoropiperidine-4-carbonitrile (CAS 1366915-10-7)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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