3,5-Bis(2,4-dimethoxyphenyl)-1H-pyrazole CAS 1228933-23-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1228933-23-0 |
| Molecular Formula | C19H20N2O4 |
| Molecular Weight | 340.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Bis(2,4-dimethoxyphenyl)-1H-pyrazole (CAS 1228933-23-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H20N2O4. Molecular weight: 340.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H20N2O4 |
| Molecular Weight | 340.37 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Bis Standards
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- 3,5-Bis(3,4-dimethoxyphenyl)-1H-pyrazole (CAS 1159937-09-3)
- 3-(((3,4-Dimethoxyphenyl)amino)methyl)-7-methoxyquinolin-2(1H)-one (CAS 947020-04-4)
- 3-(3,4-Dimethoxyphenyl)-6-ethoxy-4-methyl-2H-chromen-2-one (CAS 720674-30-6)
- 3-(3,4-Dimethoxyphenyl)-7-ethoxy-2-methyl-4H-chromen-4-one (CAS 610762-09-9)
- 1087655-93-3 9-(3,4-Dimethoxyphenyl)-6-methyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one MFCD11855690 (CAS 1087655-93-3)
- 6-(((2,5-Dimethoxyphenyl)amino)methyl)-5-methylpyrido[2,3-d]pyrimidine-2,4-diamine (CAS 159210-76-1)
- (5-(3,4-Dimethoxyphenyl)-1H-1,2,4-triazol-3-yl)(3-methoxyphenyl)methanamine (CAS 1708370-98-2)
Recommended Standards
- (4R,12aS)-7-(Benzyloxy)-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1’,2’:4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione (CAS 1206102-09-1)
- 2-Cyano-N-(3,4-dimethoxyphenyl)-3-(2-methoxyphenyl)propanamide (CAS 1260909-16-7)
- HO-PEG6-CH2COOH (CAS 120394-66-3)
- 4-((4-(3-Chlorophenyl)piperazin-1-yl)methyl)-6-ethyl-2H-chromen-2-one hydrochloride (CAS 1177436-90-6)
- 2-Hydroxy-2-(2-nitrophenyl)acetonitrile (CAS 13312-81-7)
- 2,2-Dichloro-N,N-dimethylacetamide (CAS 5468-76-8)
- 6-(4-(Hydroxymethyl)phenyl)nicotinonitrile (CAS 1160430-70-5)
- Ethyl 5-methyl-4-oxo-3-(1H-pyrrol-1-yl)-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate (CAS 305854-11-9)
- Theophylline EP Impurity B (CAS 1076-22-8)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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