O1-tert-Butyl O2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate oxalic acid CAS 1807938-33-5
| CAS No. | 1807938-33-5 |
| Molecular Formula | C11H20N2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies O1-tert-Butyl O2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate oxalic acid (CAS 1807938-33-5), a certified reference material (molecular formula C11H20N2O4C2H2O4, MW 334.32 g/mol) for analytical method development and quality control.
O1-tert-Butyl O2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate oxalic acid (C11H20N2O4C2H2O4) contains a nitrogen-containing heterocyclic scaffold, 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.
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 | C11H20N2O4 C2H2O4 |
| Molecular Weight | 334.32 g/mol |
| Appearance | Off-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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 4-(Allyloxy)piperidine hydrochloride 4355AF 956324-63-3 C8H16ClNO (CAS 956324-63-3)
- 4-(2-((2,4,6-Trifluorophenoxy)methyl)phenyl)piperidine (CAS 1227056-84-9)
- 2-(4-Phenylpyrimidin-2-yl)ethan-1-amine dihydrochloride (CAS 1187930-50-2)
- 3-(5-Chloro-4-methylpyridin-3-yl)propan-1-amine (CAS 1393554-15-8)
- a-Onocera-8,14-dien-3,21-dione (CAS 6929-24-4)
- 3-Phenyl-1-(p-tolyl)propan-1-one (CAS 5012-90-8)
- 1-(7-(Furan-2-yl)-1,4-thiazepan-4-yl)pent-4-en-1-one (CAS 1704634-19-4)
- 4-Amino-6-(difluoromethyl)picolinaldehyde (CAS 1806768-32-0)
- [4-(difluoromethyl)-1-methoxycyclohexyl]methanamine (CAS 1955554-03-6)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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