H-Tyr-Glu-Trp-OH CAS 122409-30-7
| CAS No. | 122409-30-7 |
| Molecular Formula | C25H28N4O7 |
| Molecular Weight | 496.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
H-Tyr-Glu-Trp-OH (CAS 122409-30-7), molecular formula C25H28N4O7 and molecular weight 496.51 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, H-Tyr-Glu-Trp-OH (C25H28N4O7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 496.51 g/mol, it falls into the moderately-high-molecular-weight range. 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-Tyr-Glu-Trp-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 | C25H28N4O7 |
| Molecular Weight | 496.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
Recommended Standards
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- 2-(3-Iodophenyl)-2H-benzo[d][1,2,3]triazol-5-amine (CAS 1706444-45-2)
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- Sodium Cromoglicate Impurity 20 (CAS CATO-C4X-201120)
- 5-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indole (CAS 1185427-08-0)
- 3-(Phenylethynyl)pyrazin-2-amine (CAS 798544-32-8)
- Boc-Pra-OH (CAS 63039-48-5)
- 3-(Cyclooctylsulfamoyl)benzene-1-carbothioamide (CAS 1036619-17-6)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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