3,4-Dimethyl-5-[(2-methylphenyl)methyl]-1H,6H-pyrano[2,3-c]pyrazol-6-one CAS 298218-17-4
| CAS No. | 298218-17-4 |
| Molecular Formula | C16H16N2O2 |
| Molecular Weight | 268.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3,4-Dimethyl-5-[(2-methylphenyl)methyl]-1H,6H-pyrano[2,3-c]pyrazol-6-one (CAS 298218-17-4), a certified reference material (molecular formula C16H16N2O2, MW 268.31 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 3,4-Dimethyl-5-[(2-methylphenyl)methyl]-1H,6H-pyrano[2,3-c]pyrazol-6-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 3,4-Dimethyl-5-[(2-methylphenyl)methyl]-1H,6H-pyrano[2,3-c]pyrazol-6-one 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 | C16H16N2O2 |
| Molecular Weight | 268.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 4-((2,3-Dichlorophenoxy)methyl)benzoic acid (CAS 149288-40-4)
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- 3-[(2-Amino-ethyl)-ethyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester (CAS 1353981-87-9)
- 1-(5-Bromo-4-methyl-1H-pyrrol-3-yl)ethanone (CAS 202286-27-9)
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- 3-Aminobicyclo[2.2.1]Heptane-2-carboxamide hydrochloride (CAS 1334003-85-8)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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