4-Ethoxybenzo[d]oxazole-2-carbonitrile CAS 1806339-51-4
| CAS No. | 1806339-51-4 |
| Molecular Formula | C10H8N2O2 |
| Molecular Weight | 188.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethoxybenzo[d]oxazole-2-carbonitrile (C10H8N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-Ethoxybenzo[d]oxazole-2-carbonitrile (CAS 1806339-51-4), molecular formula C10H8N2O2 and molecular weight 188.18 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C10H8N2O2 |
| Molecular Weight | 188.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related Ethoxybenzo Standards
- 2-Ethoxybenzo[d]oxazole-4-carbonitrile (CAS 1803810-76-5)
- 4-ethoxybenzo[d]oxazole-2-carbaldehyde (CAS 1803811-93-9)
- (2-Ethoxybenzo[d]oxazol-4-yl)methanamine (CAS 1803837-44-6)
- 6-Ethoxybenzo[d][1,3]dioxole-5-carbaldehyde (CAS 75889-50-8)
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- 4-Ethoxybenzo[d]thiazol-2(3h)-imine (CAS 15850-79-0)
- 6-Ethoxybenzo[b]thiophen-3(2H)-one (CAS 5858-20-8)
Recommended Standards
- 2-(Hydroxymethyl)benzo[d]oxazole-6-acetonitrile (CAS 1806322-66-6)
- 2-(4-(Hydroxymethyl)benzo[d]oxazol-2-yl)acetonitrile (CAS 1806340-63-5)
- 2-(Aminomethyl)-3,6-diamino-5-(difluoromethyl)pyridine (CAS 1804443-71-7)
- 2-(Hydroxymethyl)benzo[d]oxazole-5-acetonitrile (CAS 1806430-29-4)
- (+)-Biotin Methyl Ester (CAS 608-16-2)
- Sophoramine (CAS 6882-66-2)
- 3-Chloro-6,8-difluoro-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1437434-20-2)
- 6-Methoxy-1,2,2,4-tetramethyl-1,2-dihydroquinoline-8-carbaldehyde (CAS 1992975-80-0)
- Azelnidipine Impurity 6 (CAS 50626-68-1)
- Methyl N-(2-methoxy-5-methylphenyl)-N-(methylsulfonyl)glycinate (CAS 425616-95-1)
- 2-(5-Fluoro-2-methoxyphenyl)ethane-1-thiol (CAS 1267768-48-8)
- (S)-2-((tert-Butoxycarbonyl)amino)-5-(methylthio)pentanoic acid (CAS 1242340-22-2)
- Bilastine impurity 135 (CAS CATO-C4X-2253135)
- Semaglutide impurity 50 (CAS 2773558-66-8)
Why CATO?
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