(E)-4-(benzo[d][1,3]dioxol-5-yl)-2-(3-nitrostyryl)-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile CAS 866136-00-7
| CAS No. | 866136-00-7 |
| Molecular Formula | C28H15N3O5 |
| Molecular Weight | 473.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
(E)-4-(benzo[d][1,3]dioxol-5-yl)-2-(3-nitrostyryl)-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 866136-00-7), molecular formula C28H15N3O5 and molecular weight 473.44 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (E)-4-(benzo[d][1,3]dioxol-5-yl)-2-(3-nitrostyryl)-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (C28H15N3O5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 23.0, corresponding to approximately 23 ring(s) or double-bond equivalent(s). With a molecular weight of 473.44 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C28H15N3O5 |
| Molecular Weight | 473.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related E Standards
- (E)-4-(benzo[d][1,3]dioxol-5-yl)-2-(4-nitrostyryl)-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 866142-86-1)
- 7-(Benzo[d][1,3]dioxol-5-yl)-2-(3-(2-chloro-6-fluorophenyl)-4-methylisoxazol-5-yl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (CAS 860650-23-3)
- Methyl 2-(benzo[d][1,3]dioxole-5-carboxamido)-5-((3-chlorophenyl)carbamoyl)-4-methylthiophene-3-carboxylate (CAS 335408-34-9)
- 4-(Benzo[d]thiazol-2-ylthio)-3-nitrobenzyl (3-chlorophenyl)carbamate (CAS 338393-84-3)
- N-(Benzo[d][1,3]dioxol-5-yl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477331-29-6)
- 2-(2-(1H-Benzo[d][1,2,3]triazol-1-yl)-N-(4-ethylphenyl)acetamido)-N-(tert-butyl)-2-(thiophen-3-yl)acetamide (CAS 1033044-91-5)
- Benzo[j]phenanthridin-6(5H)-one (CAS 2413-02-7)
- 2-(((1H-benzo[d]imidazol-2-yl)methyl)thio)-6-(2,5-dimethoxyphenyl)-4-(trifluoromethyl)nicotinonitrile (CAS 939893-56-8)
Recommended Standards
- Methyl 5-acetamido-4-7-8-9-tetra-O-acetyl-2-6-anhydro-3-5-dideoxy-D-glycero-D-galacto-non-2-enonate (CAS 73960-72-2)
- Methyl 5,7,8,9-Tetra-O-acetyl-4-acylamino-2,6-anhydro-3,4-dideoxy-D-glycero-D-galacto-2-enonate (CAS 173467-18-0)
- D-Folinic acid (CAS 54353-24-1)
- 1-(4-(4-Amino-1-isopropyl-1H-pyrazolo[3,4-d]pyrimidin-3-yl)phenyl)-3-(2-fluoro-5-(trifluoromethyl)phenyl)urea (CAS 1384071-99-1)
- Methyl 3-chloro-4-ethoxybenzoate (CAS 192512-43-9)
- 7-Methyl-1-benzothiophene-3-carboxylic acid (CAS 1505-60-8)
- 1-(Benzyloxy)-2-chloro-4-fluoro-3-iodobenzene (CAS 2624417-00-9)
- (2,6-Diphenylpyridin-4-yl)boronic acid (CAS 1246022-33-2)
- (R)-2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid (CAS 4043-91-8)
- 2-((4-(4-Bromophenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-chloro-4-methoxyphenyl)acetamide (CAS 477330-76-0)
- 2,4'-Dibromodiphenyl Ether (CAS 147217-71-8)
- Ethyl 5-amino-1-(4-fluorophenyl)-4-iodo-1H-pyrazole-3-carboxylate (CAS 1427011-65-1)
- 2,2',3-Trihydroxydiphenyl Ether Standard (CAS 91368-55-7)
- D-[γ-Glu](Side Chain)-Semaglutide (CAS CATO-C4X-2226254)
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