4-(4-Methoxyphenyl)-3-methyl-6-oxo-1-(1,4,5,6-tetrahydropyrimidin-2-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile CAS 478043-74-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478043-74-2 |
| Molecular Formula | C19H20N6O2 |
| Molecular Weight | 364.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Methoxyphenyl)-3-methyl-6-oxo-1-(1,4,5,6-tetrahydropyrimidin-2-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile (CAS 478043-74-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H20N6O2. Molecular weight: 364.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H20N6O2 |
| Molecular Weight | 364.40 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 6 |
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Recommended Standards
- 4-(4-Hydroxynaphthalen-1-yl)-2-phenylphthalazin-1(2H)-one (CAS 61613-43-2)
- 4,4'-([2,2'-Bipyridine]-5,5'-diyl)dibenzaldehyde (CAS 446822-05-5)
- 4-(4-(4-Methylpiperidin-1-yl)-3-nitrophenyl)phthalazin-1-ol (CAS 575460-40-1)
- Ethyl 4-amino-2-ethylcyclopentanecarboxylate (CAS 1201187-14-5)
- 7-Methoxybenzo[c][1,2,5]oxadiazol-4-amine (CAS 21036-51-1)
- Rupatadine impurity 33 HCl (CAS CATO-C4X-102733)
- Ethyl 2-(2-{3-phenyl[(3-chlorophenyl)carbamoyl]amino}-1,3-thiazol-4-yl)benzoate (CAS 303150-08-5)
- n-(2-Chlorobenzyl)cyclopropanamine (CAS 16357-33-8)
- (R)-2-(5-Chloro-2-methoxypyridin-4-yl)propanoic acid (CAS 2350830-48-5)
- Peptide Impurity 82 (CAS 10491-78-8)
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