Gramicidin CAS 4419-81-2
| CAS No. | 4419-81-2 |
| Molecular Formula | C99H140N20O17 |
| Molecular Weight | 1882.29 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 Gramicidin.
Gramicidin (CAS 4419-81-2) is a high-purity analytical reference standard with the molecular formula C99H140N20O17 and a molecular weight of 1882.29 g/mol.
Based on its molecular formula C99H140N20O17, Gramicidin contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1882.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C99H140N20O17 |
| Molecular Weight | 1882.29 g/mol |
| 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) | 40.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 20 |
Related Gramicidin Standards
Recommended Standards
- 1,3,5,7,9,11,13,15-Octakis(((2-(cyclohex-3-en-1-yl)ethyl)dimethylsilyl)oxy)-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]icosane (CAS 136849-03-1)
- Teicoplanin A2-3 (CAS 91032-36-9)
- C5a Anaphylatoxin (37-53) (human) (CAS 706808-05-1)
- Teicoplanin A2-2 (CAS 91032-26-7)
- 4-Amino-2-(trifluoromethyl)-benzenesulfonamide (CAS 363-93-9)
- (4-Aminophenyl)(piperazin-1-yl)methanone (CAS 72141-42-5)
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- 4-Methyl-4-(prop-2-yn-1-yloxy)pentan-2-ol (CAS 102764-92-1)
- Hexanedioic acid, polymer with 2-ethyl-1,3-hexanediol (CAS 53351-10-3)
- Methyl (5-amino-6-chloropyrimidin-4-yl)glycinate (CAS 1310221-68-1)
- (2-Hydroxy-4,6-bis(trifluoromethyl)phenyl)boronic acid (CAS 2557358-96-8)
- 3-Amino-5-(1-adamantanyl)pyrazole (CAS 153566-21-3)
- 5-(2,2-Difluoropropoxy)pyrazine-2-carboxylic acid (CAS 1640975-43-4)
- Peptide Impurity 28 (CAS 1350456-64-2)
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