(2S,3S)-2-Amino-3-methylpentanedioic acid CAS 33511-70-5
| CAS No. | 33511-70-5 |
| Molecular Formula | C6H11NO4 |
| Molecular Weight | 161.16 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.
(2S,3S)-2-Amino-3-methylpentanedioic acid (CAS 33511-70-5), molecular formula C6H11NO4 and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
(2S,3S)-2-Amino-3-methylpentanedioic acid (C6H11NO4) 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.
As a certified reference material (CRM), (2S,3S)-2-Amino-3-methylpentanedioic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H11NO4 |
| Molecular Weight | 161.16 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.) | 1966 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2S,3R)-3-Methylglutamic Acid HCl salt (CAS 2445-97-8)
- (2S,4R)-4-Methylglutamic Acid (CAS 31137-74-3)
- (2S,3R)-2-Amino-3-methylpentanedioic acid (CAS 33511-69-2)
- (2S,4S)-4-Methylglutamic Acid (CAS 6141-27-1)
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