2-ethylbutyl 4-methoxybenzoate 4-methoxybenzoic acid 2-ethylbutyl ester 700-16-3 A836738 CAS 700-16-3
| CAS No. | 700-16-3 |
| Molecular Formula | C5F5N |
| Molecular Weight | 169.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-ethylbutyl 4-methoxybenzoate 4-methoxybenzoic acid 2-ethylbutyl ester 700-16-3 A836738 (CAS 700-16-3), molecular formula C5F5N and molecular weight 169.05 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-ethylbutyl 4-methoxybenzoate 4-methoxybenzoic acid 2-ethylbutyl ester 700-16-3 A836738 (C5F5N) is characterized by a nitrile group, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C5F5N |
| Molecular Weight | 169.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related ethylbutyl Standards
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- 1-(2-Ethylbutyl)piperazine 57184-38-0 5847AE C10H22N2 (CAS 57184-38-0)
- 1-(2-Ethylbutyl)-1h-pyrazol-4-amine (CAS 1240565-34-7)
- Methyl 2-[(2-ethylbutyl)amino]acetate (CAS 1019627-45-2)
- 1-((2-Ethylbutyl)amino)-2-methylpropan-2-ol (CAS 1494217-69-4)
- 2-((2-Ethylbutyl)amino)-2-methylpropan-1-ol (CAS 725251-47-8)
- 2-((2-Ethylbutyl)amino)propane-1,3-diol (CAS 1479003-23-0)
Recommended Standards
- 4-Chlorohexanoyl Chloride (CAS 99585-00-9)
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- Apixaban Impurity 94 (CAS 813452-05-0)
- N-(3-Methoxyphenyl)-5-methylisoxazole-4-carboxamide (CAS 61643-30-9)
- 3-Methyl-8-azaspiro[4.5]Decan-1-amine dihydrochloride (CAS 2055840-17-8)
- 2,2-Bis((S)-4-isopropyl-4,5-dihydrooxazol-2-yl)acetonitrile (CAS 1251471-79-0)
- 4-Nitro-DL-phenylalanine Hydrate (CAS 207569-25-3)
- (1-Methyl-1H-benzo[d]imidazol-2-yl)sulfanol (CAS 145120-74-7)
- N-[(1,2-Dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl]-3-[ethyl[trans-4-[(2-methoxyethyl)methylamino]cyclohexyl]amino]-2-methyl-5-[3-(4-morpholinyl)-1-propyn-1-yl]-benzamide (CAS 1598383-40-4)
- (5-Bromo-4-morpholino-6-oxopyridazin-1(6H)-yl)methyl acetate (CAS 866018-25-9)
- Ketotifen Impurity 19 (CAS 34580-20-6)
- 4-Amino-3-bromo-5-fluorobenzamide (CAS 1357943-94-2)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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