Fmoc-L-cysteic acid · disodium salt CAS 320384-09-6
| CAS No. | 320384-09-6 |
| Molecular Formula | C18H15NO7S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Fmoc-L-cysteic acid · disodium salt is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Fmoc-L-cysteic acid · disodium salt (CAS 320384-09-6), molecular formula C18H15NO7SNa and molecular weight 412.37 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Fmoc-L-cysteic acid · disodium salt (C18H15NO7SNa) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H15NO7S 2*Na |
| Molecular Weight | 412.37 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fmoc Standards
- Fmoc-Ser(tBu)-Ser(Psi(Me,Me)pro)-OH (CAS 1000164-43-1)
- Fmoc-Gly-Gly-Gly-Gly-OH (CAS 1001202-16-9)
- N-Fmoc-2,5-difluoro-L-phenylalanine (CAS 1004959-90-3)
- Fmoc-DL-Phe-OH (CAS 100750-05-8)
- Fmoc-D-Homocys(Trt)-OH (CAS 1007840-62-1)
- Fmoc-Glu(OtBu)-OSu (CAS 101214-22-6)
- Fmoc-Glu(OtBu)-Glu(OtBu)-OH (CAS 101214-23-7)
- Fmoc-Phe-OSu (CAS 101214-43-1)
Recommended Standards
- 3,3-diethyl azetidine-3,3-dicarboxylate (CAS 1642125-48-1)
- 1-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroquinoline-7-sulfonyl chloride (CAS 1315368-33-2)
- ((1S,4R)-4-(2-Amino-6-(cyclopropylamino)-9H-purin-9-yl)cyclopent-2-en-1-yl)methanol succinate (CAS 168146-84-7)
- 2-(Benzenesulfonylmethyl)benzaldehyde (CAS 468751-38-4)
- 1-Benzyl-4-(2-methoxy-phenyl)-1,2,3,6-tetrahydro-pyridine (CAS 113411-59-9)
- 4-Amino-1-benzylpyrrolidin-2-one dihydrochloride (CAS 2044703-04-8)
- Bucladesine Impurity 1 (CAS 55443-13-5)
- Methylenediurea (CAS 13547-17-6)
- Methyl 7-(2-ethoxy-2-oxoacetyl)-6-methyl-2,3-dihydro-1H-pyrrolizine-5-carboxylate (CAS 2193057-35-9)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com