2-(4-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperazin-2-yl)acetic acid hydrochloride CAS 1171909-95-7
| CAS No. | 1171909-95-7 |
| Molecular Formula | C21H22N2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(4-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperazin-2-yl)acetic acid hydrochloride (CAS 1171909-95-7), molecular formula C21H22N2O4HCl and molecular weight 402.88 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(4-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperazin-2-yl)acetic acid hydrochloride (C21H22N2O4HCl) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H22N2O4 HCl |
| Molecular Weight | 402.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related H Standards
- (9H-Fluoren-9-yl)methyl 4-amino-4-methylpiperidine-1-carboxylate (CAS 1001754-52-4)
- (9H-Fluoren-9-yl)boronic acid (CAS 100374-79-6)
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-sulfopropanoic acid (CAS 1005412-03-2)
- 1-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-methylcyclohexane-1-carboxylic acid (CAS 1013997-27-7)
- 1-(9h-Fluoren-2-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1019109-76-2)
- 2-[4-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetic acid (CAS 1023821-72-8)
- (9H-Fluoren-9-yl)methyl 2,5-dioxopyrrolidine-1-carboxylate (CAS 102774-86-7)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-methoxyphenyl)acetic acid (CAS 1028530-29-1)
Recommended Standards
- 3-Chloro-6-(2-chlorophenyl)pyridazine (CAS 66549-15-3)
- tert-Butyl 4-((4-hydroxypiperidin-1-yl)methyl)piperidine-1-carboxylate (CAS 1823250-58-3)
- 1-(2-((Tetrahydrofuran-2-yl)methoxy)ethyl)-1h-pyrazol-4-amine (CAS 1248793-64-7)
- 3-Amino-1,1,1-trifluoro-5-methylhexan-2-one (CAS 106728-41-0)
- (2S,3S,4aR,8aR)-2,3,4a,8a-Tetrahydro-2,3-dimethoxy-2,3-dimethyl-1,4-benzodioxin-6(5H)-one (CAS 286936-09-2)
- Saxagliptin Impurity 29 (CAS 1496712-39-0)
- (2E)-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-3-[(4-phenoxyphenyl)amino]prop-2-en-1-one (CAS 478040-03-8)
- 4-Chloro-5-(ethylamino)-2-phenylpyridazin-3(2H)-one (CAS 3707-27-5)
- Ethyl 4,5-dimethoxy-2-nitrobenzoate (CAS 100905-33-7)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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