4-Hydroxy-3-(4'-methoxy-[1,1'-biphenyl]-4-yl)-6-oxo-6,7-dihydrothieno[2,3-b]pyridine-5-carbonitrile CAS 844499-75-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 844499-75-8 |
| Molecular Formula | C21H14N2O3S |
| Molecular Weight | 374.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-3-(4'-methoxy-[1,1'-biphenyl]-4-yl)-6-oxo-6,7-dihydrothieno[2,3-b]pyridine-5-carbonitrile (CAS 844499-75-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H14N2O3S. Molecular weight: 374.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H14N2O3S |
| Molecular Weight | 374.41 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
- (R)-2-hydroxy-2-((3aR,5R,6R,6aR)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethyl 4-methylbenzenesulfonate (CAS 24384-93-8)
- 2-Hydroxy-2-(6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethyl 4-methylbenzenesulfonate (CAS 26275-20-7)
- 4-Hydroxy-3-(3'-methoxy-[1,1'-biphenyl]-4-yl)-6-oxo-6,7-dihydrothieno[2,3-b]pyridine-5-carbonitrile (CAS 844499-74-7)
- 5-(4-Ethyl-5-hydroxy-3-methyl-1H-pyrazol-1-yl)-2-phenoxybenzenesulfonic acid (CAS 321143-17-3)
- (E)-3-hydroxy-2-(((4-methyl-6-(pyridin-2-ylthio)pyrimidin-2-yl)imino)methyl)-1H-inden-1-one (CAS 1023505-94-3)
- 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)isobenzofuran-1(3H)-one (CAS 50984-88-8)
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Recommended Standards
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- 4-(3-(2-Methoxyphenyl)-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide (CAS 65116-69-0)
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- (S)-3,5-Dichloro-N-[(1-ethyl-2-pyrrolidinyl)methyl]-2,6-dihydroxybenzamide hydrobromide 113310-88-6 S-(+)-O-Desmethylraclopride hydrobromide (CAS 113310-88-6)
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