H-Leu-Glu-OH CAS 16364-31-1
| CAS No. | 16364-31-1 |
| Molecular Formula | C11H20N2O5 |
| Molecular Weight | 260.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 260.29 g/mol gives H-Leu-Glu-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Leu-Glu-OH (CAS 16364-31-1), molecular formula C11H20N2O5 and molecular weight 260.29 g/mol, is a CATO reference standard with documented purity and traceability.
H-Leu-Glu-OH (C11H20N2O5) 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.
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.
CATO manufactures H-Leu-Glu-OH 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 | C11H20N2O5 |
| Molecular Weight | 260.29 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | >95% |
| 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.) | 1961 |
| Nitrogen Atoms | 2 |
Recommended Standards
- H-Ile-Glu-OH (CAS 42516-53-0)
- Ac-5-Me-DL-Trp-OH (CAS 71953-90-7)
- H-Glu(Leu-OH)-OH (CAS 2566-39-4)
- Cyclo(-Pro-Tyr) (CAS 4549-02-4)
- 4-Chloro-D-tryptophan (CAS 27542-41-2)
- N-Boc-3,5-difluoro-L-phenylalanine (CAS 205445-52-9)
- Ethyl 7-fluoroindoline-2-carboxylate (CAS 128487-44-5)
- Fusidate Sodium (CAS 751-94-0)
- 2-(1-(2-Cyanophenyl)-2,5-dimethyl-1H-pyrrol-3-yl)-2-oxo-N-phenylacetamide (CAS 866144-06-1)
- 2,5-(Dimethoxy-d6)-4-iodophenethylamine Hydrochloride (CAS 1216685-82-3)
- [(4-Chloro-2-fluorophenyl)methyl]boronic acid (CAS 2246683-95-2)
- tert-Butyl 4-(3-(aminomethyl)phenyl)piperidine-1-carboxylate (CAS 1290056-54-0)
- 2-Chloro-n-{[4-(pyrrolidine-1-carbonyl)phenyl]methyl}acetamide (CAS 1087792-02-6)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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