N-Octadecyl-L-aspartic acid CAS 70021-38-4
| CAS No. | 70021-38-4 |
| Molecular Formula | C22H43NO4 |
| Molecular Weight | 385.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-Octadecyl-L-aspartic acid.
N-Octadecyl-L-aspartic acid (CAS 70021-38-4), molecular formula C22H43NO4 and molecular weight 385.58 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H43NO4, N-Octadecyl-L-aspartic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 385.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), N-Octadecyl-L-aspartic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H43NO4 |
| Molecular Weight | 385.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 1 |
Related N Standards
- Octadecyl heptanoate (CAS 66009-41-4)
- 2-Octadecyl-1,4-dimethoxybenzene (CAS 88702-69-6)
- Octadecyl isonicotinate (CAS 103225-02-1)
- Octadecyl benzoate (CAS 10578-34-4)
- Octadecyl octanoate (CAS 18312-31-7)
- Octadecyl 2,2,2-trifluoroacetate (CAS 79392-43-1)
- Octadecyl dodecanoate (CAS 3234-84-2)
- Octadecyl 3-mercaptopropanoate (CAS 31778-15-1)
Recommended Standards
- 7-Doxyl Stearic Acid (CAS 40951-82-4)
- 5-(3-Nitrophenyl)-2-(2,4,6-trichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000575-65-4)
- 4-Amino-2-(4-bromo-2-chlorophenylamino)-3-fluoro-5-nitrobenzonitrile (CAS 917980-13-3)
- 5-(4-Nitrophenyl)-2-(2,4,6-trichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000575-74-5)
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