4-Methyl-5-(pyridin-3-yl)-1H-pyrazol-3(2H)-one CAS 90280-25-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90280-25-4 |
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Methyl-5-(pyridin-3-yl)-1H-pyrazol-3(2H)-one (CAS 90280-25-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C9H9N3O. Molecular weight: 175.19 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 4-methyl-3-(pyridin-3-yl)-1,2-oxazol-5-amine (CAS 1092307-33-9)
- 3-Methyl-1-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-5-one (CAS 111988-01-3)
- 1-(Pyridin-3-ylmethyl)-1h-1,2,4-triazol-3-amine (CAS 1178229-40-7)
- 1-(pyridin-4-ylmethyl)-1H-1,2,4-triazol-3-amine (CAS 1182736-00-0)
- 1-[(pyridin-2-yl)methyl]-1h-1,2,4-triazol-3-amine (CAS 1184416-55-4)
- (1-(Pyridin-2-yl)-1H-pyrazol-4-yl)methanol (CAS 1199773-61-9)
- 1-Methyl-3-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-5-one (CAS 1221723-78-9)
- 3-methyl-1-(pyridin-4-yl)-1h-1,2,4-triaZol-5-amine (CAS 1247374-68-0)
Recommended Standards
- 4-Methyl-5-(pyridin-2-yl)-1H-pyrazol-3(2H)-one (CAS 90280-27-6)
- 4-Methyl-5-(pyridin-4-yl)-1H-pyrazol-3(2H)-one (CAS 90280-21-0)
- 4-Methyl-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-7-carbonitrile (CAS 912569-63-2)
- 2-(Phenylsulfonyl)ethanamine hydrochloride (CAS 38752-48-6)
- Methyl (S)-5-oxotetrahydrofuran-2-carboxylate (CAS 21461-85-8)
- (R)-octan-2-amine hydrochloride (CAS 68889-60-1)
- (Sa,S)-Xyl-Bn-SIPHOX (CAS 913829-90-0)
- 3-(2,5-Dimethyl-7-oxo-3,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)- propanoic acid (CAS 883550-13-8)
- 2-(2-Propoxyethoxy)aniline (CAS 937695-98-2)
- Serpent Peptide (CAS 823202-99-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com