5,7-Diphenyl-pyrazolo[1,5-α]pyrimidine-3-carboxylic Acid Ethyl Ester CAS 895764-31-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 895764-31-5 |
| Molecular Formula | C21H17N3O2 |
| Molecular Weight | 343.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-Diphenyl-pyrazolo[1,5-α]pyrimidine-3-carboxylic Acid Ethyl Ester (CAS 895764-31-5) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H17N3O2. Molecular weight: 343.38 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H17N3O2 |
| Molecular Weight | 343.38 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 4-Morpholino-6-phenyl-2-(3-pyridinyl)-5-pyrimidinecarbonitrile (CAS 320417-69-4)
- 6-[2-(2,6-Dimethylmorpholin-4-yl)-2-oxoethoxy]-2-phenyl-2,3-dihydropyridazin-3-one (CAS 439111-72-5)
- 4-Methyl-N-(4-methyl-3-nitrophenyl)acridin-9-amine (CAS 655238-80-5)
- 6-Chloro-2-phenylpyrimidine-4-carboxylic acid (CAS 913952-59-7)
- Ethyl 2-guanidino-4-methylthiazole-5-carboxylate hydrochloride (CAS 131184-96-8)
- (R)-Ethyl 2-amino-3-(4-fluorophenyl)propanoate (CAS 104880-95-7)
- (5-bromo-2-fluoro-3-nitrophenyl)methanol (CAS 1807209-41-1)
- Travoprost Impurity 49 (CAS 2557326-99-3)
- 2-Amino-3-(2-fluoro-5-methylphenyl)propanoic acid (CAS 1043500-50-0)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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