Z-Phe-Phe-OH CAS 13122-91-3
| CAS No. | 13122-91-3 |
| Molecular Formula | C26H26N2O5 |
| Molecular Weight | 446.50 g/mol |
| 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 Z-Phe-Phe-OH.
Z-Phe-Phe-OH (CAS 13122-91-3), molecular formula C26H26N2O5 and molecular weight 446.50 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Z-Phe-Phe-OH is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 446.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H26N2O5 |
| Molecular Weight | 446.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Z-Dap(Fmoc)-OH (CAS 142855-80-9)
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- Cilazapril impurity 1 (CAS CATO-C4X-29771)
- 1,2-Bis(1H-benzo[d][1,2,3]triazol-1-yl)-N1,N2-diphenylethane-1,2-diamine (CAS 151257-56-6)
- N-Benzyl-N-nitroso-p-toluenesulfonamide (CAS 33528-13-1)
- 4-(2-{[4,6-dimethyl-3-(2-methylbenzenesulfonyl)pyridin-2-yl]oxy}ethyl)morpholine (CAS 339276-88-9)
- 1-Methyl-6-thioguanosine (CAS 55727-08-7)
- Ethyl 4-(dimethylamino)but-2-enoate (CAS 98552-51-3)
- 3-(Pyrrolidin-1-ylsulfonyl)benzenesulfonamide (CAS 1094292-24-6)
- 3-((4-Fluorobenzyl)thio)-6-(pyridin-2-yl)pyridazine (CAS 893994-17-7)
- Ethyl 3-(4-chloro-2-phenylthiazol-5-yl)propanoate (CAS 1204423-36-8)
- 2-Hydrazino-5-methylpyridine (CAS 4931-01-5)
- 2-(Piperidin-1-yl)quinoline-3-carbaldehyde (CAS 326008-59-7)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com