DL-1-Pyrroline-5-carboxylic acid CAS 2906-39-0
| CAS No. | 2906-39-0 |
| Molecular Formula | C5H7NO2 |
| Molecular Weight | 113.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies DL-1-Pyrroline-5-carboxylic acid (CAS 2906-39-0), a certified reference material (molecular formula C5H7NO2, MW 113.11 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, DL-1-Pyrroline-5-carboxylic acid is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 113.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C5H7NO2 |
| Molecular Weight | 113.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related DL Standards
- Pyrroline-5-carboxylate (CAS 2139-03-9)
- 2-Acetyl-1-pyrroline-13C2 85% (10% w/w in Toluene) (CAS 1246819-73-7)
- 2-Acetyl-1-pyrroline, ~10% w/w in Toluene (CAS 85213-22-5)
- 2-Acetyl-1-pyrroline 13C5 in DCM (CAS 1449323-18-5)
- 2-methyl-1-pyrroline 3,4-Dihydro-5-methyl-2H-pyrrole 5-methyl-3,4-dihydro-2H-pyrrole 872-32-2 CHEBI:78856 (CAS 872-32-2)
- 3-Pyrroline (CAS 109-96-6)
- 1-Benzyl-3-pyrroline (CAS 6913-92-4)
- 2-Pyrroline；2,3-dihydro-1H-pyrrole(mix) (CAS 28350-87-0)
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- 2-Isobutylthiazolidine (CAS 696-70-8)
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Why CATO?
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