H-Leu-Leu-OMe · HBr CAS 16689-14-8
| CAS No. | 16689-14-8 |
| Molecular Formula | C13H26N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including H-Leu-Leu-OMe · HBr.
H-Leu-Leu-OMe · HBr (CAS 16689-14-8) is a high-purity analytical reference standard with the molecular formula C13H26N2O3HBr and a molecular weight of 339.27 g/mol.
Structurally, H-Leu-Leu-OMe · HBr (C13H26N2O3HBr) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 339.27 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 H-Leu-Leu-OMe · HBr 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 | C13H26N2O3 HBr |
| Molecular Weight | 339.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 5-{[4-(3-Fluoropropoxy)phenyl]methylene}-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione (CAS 477857-22-0)
- 4-Chloro-N,6-dimethylpyrimidin-2-amine (CAS 5738-15-8)
- 3-Bromothiofuran (CAS 872-31-1)
- Benzyl 2-(((S)-2-amino-N,3-dimethylbutanamido)methyl)pyrrolidine-1-carboxylate (CAS 1354033-14-9)
- N-Ethyl-2-(4-ethyl-1H-imidazol-5-yl)ethanamine (CAS 761345-22-6)
- Ethyl 4-formyl-1H-indole-6-carboxylate (CAS 1638771-89-7)
- N-(1-(Cyclopropanecarbonyl)indolin-5-yl)methanesulfonamide (CAS 1049519-22-3)
- 1-(2,5-Dichloro-4-sulfophenyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 7253-04-5)
- Hemokinin 1 (mouse, rat) (CAS 208041-90-1)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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