H-Pyr-His-Trp-OH CAS CATO-CPTD788542
| CAS No. | CATO-CPTD788542 |
| Molecular Formula | C22H25N7O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 565.51 g/mol gives H-Pyr-His-Trp-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies H-Pyr-His-Trp-OH (CAS CATO-CPTD788542), a certified reference material (molecular formula C22H25N7O4C2HF3O2, MW 565.51 g/mol) for analytical method development and quality control.
H-Pyr-His-Trp-OH (C22H25N7O4C2HF3O2) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), H-Pyr-His-Trp-OH 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 | C22H25N7O4 C2HF3O2 |
| Molecular Weight | 565.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
Recommended Standards
- 4-(4-Bromophenoxy)phenol (CAS 13320-48-4)
- 5-Ethylisophthalaldehyde (CAS 118792-76-0)
- 3-Amino-5-methylpyrazine-2-carboxamide (CAS 50627-49-1)
- (4-Butoxy-3,5-dimethylphenyl)boronic acid (CAS 845551-41-9)
- 4,4＇- Ethylidenebisphenol (CAS 2081-08-5)
- 3-Chloropropane-1,2-diyl bis(2-methylacrylate) (CAS 57322-59-5)
- Ovalbumin (154-159) trifluoroacetate salt (CAS 1370698-94-4)
- 4-(Benzylthio)-7H-pyrrolo[2,3-d]pyrimidine (CAS 4786-75-8)
- 1-Bromo-4-(tert-butoxymethyl)benzene (CAS 22807-80-3)
- Pancreatic Polypeptide (human) trifluoroacetate salt (CAS 75976-10-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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