270262-98-1 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-thiophen-2-ylbutanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-thiophen-2-yl-butanoic acid A818849 CAS 270262-98-1
| CAS No. | 270262-98-1 |
| Molecular Formula | C23H21NO4S |
| Molecular Weight | 407.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
270262-98-1 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-thiophen-2-ylbutanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-thiophen-2-yl-butanoic acid A818849 (CAS 270262-98-1), molecular formula C23H21NO4S and molecular weight 407.48 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 270262-98-1 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-thiophen-2-ylbutanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-thiophen-2-yl-butanoic acid A818849 (C23H21NO4S) 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).
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), 270262-98-1 3-amino-2-[9H-fluoren-9-ylmethoxy(oxo)methyl]-4-thiophen-2-ylbutanoic acid 3-azanyl-2-(9H-fluoren-9-ylmethoxycarbonyl)-4-thiophen-2-yl-butanoic acid A818849 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 | C23H21NO4S |
| Molecular Weight | 407.48 g/mol |
| Purity | 97%+ |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related amino Standards
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- Benzyl 6'-amino-5'-cyano-3'-propyl-2'H-spiro[piperidine-4,4'-pyrano[2,3-c]pyrazole]-1-carboxylate (CAS 488861-57-0)
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- (S)-5-Amino-7-(5-methyl-2-furyl)-3-[[6-[[(3-tetrahydrofuranyl)oxy]methyl]-2-pyridyl]methyl]-3H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 1202402-40-1)
- 1-(2-Amino-1-(isopropylsulfonyl)-1H-benzo[d]imidazol-6-yl)-2-(2,4-difluorophenyl)ethane-1,2-dione (CAS 849064-39-7)
- 3-Amino-N-(2,6-dichlorophenyl)-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridine-2-carboxamide (CAS 387831-32-5)
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Recommended Standards
- Tert-butyl2-(p-tolylsulfonyloxymethyl)-6,7-dihydro-4h-pyrazolo[1,5-a]pyrazine-5-carboxylate (CAS 2306274-60-0)
- Fmoc-(R)-3-Amino-4-(3-thienyl)-butyric acid (CAS 269726-93-4)
- Captopril Impurity 29 (CAS CATO-C4X-119029)
- Fmoc-(R)-3-Amino-4-(2-thienyl)-butyric acid (CAS 269726-90-1)
- 1-(3-Ethyl-4,5-dimethylfuran-2-yl)ethanone (CAS 145663-32-7)
- N-(4-Chloropyridin-2-yl)-1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 1027235-95-5)
- Cefazolin Impurity 39 (CAS 13616-37-0)
- Propargyl-PEG4-CH2CH2-Boc (CAS 1245823-50-0)
- 5-Chloro-2-(4-chloro-2,6-dimethylphenoxy)aniline (CAS 750599-36-1)
- 1-(4-Methylmorpholin-2-yl)-N-((2-methylthiazol-5-yl)methyl)methanamine (CAS 1311906-55-4)
- H-Pro-Pro-Pro-Pro-OH (CAS 21866-90-0)
- 6-((Methylthio)methyl)-2-(pyridin-2-yl)pyrimidin-4-ol (CAS 477886-09-2)
- 2-(3-Chlorophenyl)-1,2,3,4-tetrahydroquinolin-4-amine (CAS 1956332-87-8)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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