4-([(9H-fluoren-9-ylmethoxy)carbonyl]amino)-3,3-difluorobutanoic acid CAS 1936405-79-6
| CAS No. | 1936405-79-6 |
| Molecular Formula | C19H17F2NO4 |
| Molecular Weight | 361.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 361.34 g/mol gives 4-([(9H-fluoren-9-ylmethoxy)carbonyl]amino)-3,3-difluorobutanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-([(9H-fluoren-9-ylmethoxy)carbonyl]amino)-3,3-difluorobutanoic acid (CAS 1936405-79-6), a certified reference material (molecular formula C19H17F2NO4, MW 361.34 g/mol) for analytical method development and quality control.
Based on its molecular formula C19H17F2NO4, 4-([(9H-fluoren-9-ylmethoxy)carbonyl]amino)-3,3-difluorobutanoic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 361.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C19H17F2NO4 |
| Molecular Weight | 361.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related H Standards
- 3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)pyrazine-2-carboxylic acid (CAS 1339442-60-2)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)pyrimidine-5-carboxylic acid (CAS 2243512-94-7)
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)isonicotinic acid (CAS 1234878-64-8)
- (9H-Fluoren-9-yl)methyl (4-nitrophenyl)carbamate (CAS 123622-29-7)
- 2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)isonicotinic acid (CAS 1341759-16-7)
- 6-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)picolinic acid (CAS 1342022-63-2)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)picolinic acid (CAS 1342049-68-6)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)nicotinic acid (CAS 1396968-42-5)
Recommended Standards
- N-(3,4-difluorobenzyl)-6,7,8-trimethoxyquinazolin-4-amine (CAS 150450-17-2)
- (2R,3S,4R,5R,6R)-5-acetamido-2-(acetoxymethyl)-6-methoxytetrahydro-2H-pyran-3,4-diyl diacetate (CAS 2771-48-4)
- 3-((2,4-Difluorophenoxy)methyl)-5-(4-ethoxy-3-methoxyphenyl)-1H-1,2,4-triazole (CAS 1416346-67-2)
- (2S)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-Butanoic acid (CAS 467442-21-3)
- 2-[(N-tert-Butoxycarbonyl)amino]-4-(4-chlorophenyl)-3-(3-cyanophenyl)butane (CAS 605680-53-3)
- Ethyl (5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl)glycinate (CAS 1202805-23-9)
- 6-Chloro-7-nitro-1H-benzo[d]imidazole (CAS 32046-86-9)
- 1-[(4-Benzoyl-1-methyl-1H-pyrrol-2-yl)methyl]-4-(4-nitrophenyl)piperazine (CAS 866149-61-3)
- Ethyl 2-pyrrol-1-yl-benzate (CAS 78540-08-6)
- 4-Bromo-2,3-difluoro-benzoic Acid (CAS 194804-91-6)
- Ethyl 4-Ethoxybutyrate (CAS 26448-91-9)
- 2-Amino-2-(6-bromopyridin-3-yl)acetic acid hydrochloride (CAS 1246553-79-6)
- Ethyl 2-(5-bromo-1H-indol-1-yl)acetate (CAS 726174-45-4)
- D-Pro37-Tirzepatide (CAS CATO-CPTD788902)
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