4,4'-Methylenebis(3-methyl-1-phenyl-1H-pyrazol-5(4H)-one) CAS 7149-40-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7149-40-8 |
| Molecular Formula | C21H20N4O2 |
| Molecular Weight | 360.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-Methylenebis(3-methyl-1-phenyl-1H-pyrazol-5(4H)-one) (CAS 7149-40-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H20N4O2. Molecular weight: 360.41 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H20N4O2 |
| Molecular Weight | 360.41 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 4 |
Related Methylenebis Standards
- 4,4′-Methylenebis(2,6-diethylphenyl isocyanate) (CAS 105442-35-1)
- 2,2-Methylenebis(4-bromophenol) (CAS 78563-03-8)
- 4,4'-Methylenebis(benzenesulfonyl Chloride) (CAS 3119-64-0)
- 4,4'-Methylenebis(2,6-diisopropylaniline) (CAS 19900-69-7)
- 2,2'-Methylenebis(4-ethyl-6-tert-butylphenol) (CAS 88-24-4)
- 1,1'-(Methylenebis(2,4-dihydroxy-6-methoxy-3,1-phenylene))bis(ethan-1-one) (CAS 142382-28-3)
- 2,2'-methylenebis(hexahydro-1H-4,7-methanoisoindole-1,3(2H)-dione) (CAS CATO-C3D-262729)
- 4,4＇-Methylenebis(3-chloro-2,6-diethylaniline) (CAS 106246-33-7)
Recommended Standards
- 4'-(4-Quinolyl)-2,2':6',2"-terpyridine (CAS 2197971-41-6)
- 4-Oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 2-(thiophen-2-yl)acetate (CAS 877637-56-4)
- 4-(3,5-Dimethoxyphenyl)-5-(((4-fluorophenyl)amino)methyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-08-4)
- (5-Bromo-2-iodophenyl)methanamine (CAS 771581-39-6)
- 3-(4-Cyanophenylmethoxy)phenylboronic acid (CAS 1256355-72-2)
- 2,3-Dihydrobenzofuran-5-amine HCl (CAS 1093403-66-7)
- (S)-2-(3-chloro-4,5-difluorophenyl)pyrrolidine (CAS 1241680-70-5)
- Fosfomycin Impurity 36 (CAS CATO-C4X-131636)
- Gaiactamine (CAS 15687-23-7)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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