(2S,3S)-2-(9H-Fluorene-2-sulfonamido)-3-methylpentanoic acid CAS 56211-82-6
| CAS No. | 56211-82-6 |
| Molecular Formula | C19H21NO4S |
| Molecular Weight | 359.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (2S,3S)-2-(9H-Fluorene-2-sulfonamido)-3-methylpentanoic acid (CAS 56211-82-6), a certified reference material (molecular formula C19H21NO4S, MW 359.44 g/mol) for analytical method development and quality control.
(2S,3S)-2-(9H-Fluorene-2-sulfonamido)-3-methylpentanoic acid (C19H21NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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).
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), (2S,3S)-2-(9H-Fluorene-2-sulfonamido)-3-methylpentanoic 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 | C19H21NO4S |
| Molecular Weight | 359.44 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Tos-PEG2-NH-Boc (CAS 192132-77-7)
- 1-(1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(thiophen-2-ylmethyl)urea (CAS 894014-46-1)
- 5-(4-(Benzyloxy)phenyl)-4-phenyl-4H-1,2,4-triazole-3-thiol (CAS 189372-24-5)
- 1-Cyclohexyl-3-(4-(4-fluorophenyl)piperazin-1-yl)pyrrolidine-2,5-dione (CAS 924873-67-6)
- 1-(2-Amino-1-(2-methoxyphenyl)ethyl)pyrrolidine-3-carboxylicacidhydrochloride (CAS 1958106-16-5)
- Fenquinotrione (CAS 1342891-70-6)
- 1-(4-Bromophenyl)octahydroisoquinolin-4a(2H)-ol (CAS 345637-76-5)
- 1-methyl-1H-pyrazole-3-sulfonamide (CAS 88398-97-4)
- (S)-2-Amino-N-cyclopropyl-N-((2,3-dihydrobenzo[b][1,4]dioxin-5-yl)methyl)-3-methylbutanamide (CAS 1354019-13-8)
- 5-(tert-Butyl)-1-methyl-1H-pyrazol-3-amine (CAS 591233-81-7)
- Ethyl 2-(3-methylthiophen-2-yl)-2-oxoacetate (CAS 32977-83-6)
- Methyl 2-(((5-(methoxymethyl)-3-oxo-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)acetate (CAS 240799-78-4)
- N-(1-((6aR,8R,9aR)-9-Cyano-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)acetamide (CAS 1194441-31-0)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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