270263-07-5 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-(2-furanyl)butanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-(furan-2-yl)butanoic acid A818858 CAS 270263-07-5
| CAS No. | 270263-07-5 |
| Molecular Formula | C23H21NO5 |
| Molecular Weight | 391.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 270263-07-5 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-(2-furanyl)butanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-(furan-2-yl)butanoic acid A818858 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 270263-07-5 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-(2-furanyl)butanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-(furan-2-yl)butanoic acid A818858 (CAS 270263-07-5), a certified reference material (molecular formula C23H21NO5, MW 391.42 g/mol) for analytical method development and quality control.
Structurally, 270263-07-5 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-(2-furanyl)butanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-(furan-2-yl)butanoic acid A818858 (C23H21NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 391.42 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C23H21NO5 |
| Molecular Weight | 391.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related amino Standards
- (S)-5-Amino-4,11-diethyl-4-hydroxy-1,12-dihydro-14H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H)-dione (CAS 1258494-60-8)
- 3-Amino-N-cyclopropyl-6-(p-tolyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 499118-04-6)
- 1-Amino-4-hydroxy-2-((2-phenoxyethyl)thio)anthracene-9,10-dione (CAS 62592-01-2)
- 7-(3-Amino-2-Oxoazepan-1-yl-1-Cyclopropyl-6,8-Difluoro-4-Oxoquinoline-3-Carboxylic Acid (CAS 151895-29-3)
- (3-Amino-2,6-difluorophenyl)(5-(2-cyclopropylpyrimidin-5-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)methanone (CAS 1859158-65-8)
- 6-Amino-4-(4-(4-methoxyphenyl)piperazin-1-yl)-1-(p-tolyl)pyrimidin-2(1H)-one (CAS 338956-31-3)
- 2-amino-5-[[2-(carboxymethylamino)-1-(hexylsulfanylmethyl)-2-oxo-ethyl]amino]-5-oxo-pentanoic acid 24425-56-7 NSC131114 N~5~-(2-((Carboxymethyl)amino)-1-((hexylthio)methyl)-2-oxoethyl)glutamine (CAS 24425-56-7)
- N’-(13-Amino-4,7,10-trioxatridecanyl)-N-methyl-N-tert-butoxycarbonyl-glycinamide (CAS 1330266-36-8)
Recommended Standards
- N-(Furan-2-ylmethyl)-2-imino-10-methyl-5-oxo-1-propyl-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 488110-73-2)
- Tadalafil Impurity 156 (CAS 378788-16-0)
- N-(3-Methyl-6-nitrobenzo[d]thiazol-2(3H)-ylidene)-2-(phenylsulfonyl)acetamide (CAS 895453-91-5)
- Rivaroxaban Impurity 155 (CAS CATO-C4X-1090155)
- (R)-3-(4-Fluorophenoxy)pyrrolidine Hydrochloride (CAS 1314419-67-4)
- 3-Chloro-2-(1-(5-(methylthio)-4-phenyl-4H-1,2,4-triazol-3-yl)ethyl)-5-(trifluoromethyl)pyridine (CAS 339010-60-5)
- 6-(tert-Butyl)-4-oxo-4H-chromene-3-carbaldehyde (CAS 288399-61-1)
- 2-(2-((2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)phenyl)selanyl)phenyl)-5,5-dimethyl-4,5-dihydrooxazole (CAS 287111-53-9)
- 5-(2-chloro-5-methylphenyl)pyridin-2-amine (CAS 1365272-37-2)
- 3,4-Dihydro-1H-pyrrolo[1,2-c][1,3]oxazin-1-one (CAS 372076-18-1)
- (2-Fluoro-5-methylphenyl)(piperazin-1-yl)methanone (CAS 1831497-10-9)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
- N-Benzylfuran-2-carboxamide (CAS 10354-48-0)
- Des-Lys20(Side Chain)-Semaglutide (CAS CATO-C4X-2226280)
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