567-35-1 11L19HLQ3S 3-Hydroxy-L-proline, (3R)- UNII-11L19HLQ3S L-Proline, 3-hydroxy-, (3R)- Proline, 3-hydroxy-, L-cis- (3R)-3-Hydroxy-L-proline cis-3-Hydroxyproline (2S,3R)-(-)-3-Hydroxy-L-proline CAS 567-35-1
| CAS No. | 567-35-1 |
| Molecular Formula | C5H9NO3 |
| Molecular Weight | 131.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
567-35-1 11L19HLQ3S 3-Hydroxy-L-proline, (3R)- UNII-11L19HLQ3S L-Proline, 3-hydroxy-, (3R)- Proline, 3-hydroxy-, L-cis- (3R)-3-Hydroxy-L-proline cis-3-Hydroxyproline (2S,3R)-(-)-3-Hydroxy-L-proline (CAS 567-35-1), molecular formula C5H9NO3 and molecular weight 131.13 g/mol, is a CATO reference standard with documented purity and traceability.
567-35-1 11L19HLQ3S 3-Hydroxy-L-proline, (3R)- UNII-11L19HLQ3S L-Proline, 3-hydroxy-, (3R)- Proline, 3-hydroxy-, L-cis- (3R)-3-Hydroxy-L-proline cis-3-Hydroxyproline (2S,3R)-(-)-3-Hydroxy-L-proline (C5H9NO3) 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 567-35-1 11L19HLQ3S 3-Hydroxy-L-proline, (3R)- UNII-11L19HLQ3S L-Proline, 3-hydroxy-, (3R)- Proline, 3-hydroxy-, L-cis- (3R)-3-Hydroxy-L-proline cis-3-Hydroxyproline (2S,3R)-(-)-3-Hydroxy-L-proline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H9NO3 |
| Molecular Weight | 131.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Recommended Standards
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Why CATO?
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