(1S,3S)-3-((tert-Butoxycarbonyl)amino)cyclopentanecarboxylic acid CAS 161601-29-2
| CAS No. | 161601-29-2 |
| Molecular Formula | C11H19NO4 |
| Molecular Weight | 229.27 g/mol |
| 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.
(1S,3S)-3-((tert-Butoxycarbonyl)amino)cyclopentanecarboxylic acid (CAS 161601-29-2), molecular formula C11H19NO4 and molecular weight 229.27 g/mol, is a CATO reference standard with documented purity and traceability.
(1S,3S)-3-((tert-Butoxycarbonyl)amino)cyclopentanecarboxylic acid (C11H19NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H19NO4 |
| Molecular Weight | 229.27 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2R,3R)-1-(tert-butoxycarbonyl)-3-methylpyrrolidine-2-carboxylic acid (CAS 1610035-92-1)
- (1R,3S)-3-(Boc-amino)cyclopentane-1-carboxylic acid (CAS 161660-94-2)
- (2S,5R)-1-[(tert-butoxy)carbonyl]-5-methylpyrrolidine-2-carboxylic acid (CAS 160033-52-3)
- 1-(tert-Butoxycarbonyl)-3,3-dimethylazetidine-2-carboxylic acid (CAS 1620842-88-7)
- 1,1,1-Trifluoro-4-[(2-furylmethyl)amino]but-3-en-2-one (CAS 215519-26-9)
- 2-Methoxy-N-(o-tolyl)aniline (CAS 78943-67-6)
- (E)-4-(2-Carboxyvinyl)benzoic acid (CAS 56148-65-3)
- 2-(2-Methoxy-5-methylphenyl)ethane-1-thiol (CAS 1267266-96-5)
- N-((5-(4-Fluorophenyl)isoxazol-3-yl)methyl)-2-(thiophen-2-yl)acetamide (CAS 953181-64-1)
- rac-(2R,3R)-1-ethyl-2-(1-methyl-1H-imidazol-2-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1909293-78-2)
- 2-(Methylsulfinyl)-1h-benzo[d]imidazol-6-amine (CAS 1247751-36-5)
- n-Ethyl-4-hydroxybenzamide (CAS 27522-79-8)
- 6,6′-Dibromoisoindigo (CAS 1147124-21-7)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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