Fmoc-Tyr-Ala-diazomethylketone CAS 205763-22-0
| CAS No. | 205763-22-0 |
| Molecular Formula | C28H26N4O5 |
| Molecular Weight | 498.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Fmoc-Tyr-Ala-diazomethylketone (CAS 205763-22-0) is a high-purity analytical reference standard with the molecular formula C28H26N4O5 and a molecular weight of 498.53 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Fmoc-Tyr-Ala-diazomethylketone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 498.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Fmoc-Tyr-Ala-diazomethylketone 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 | C28H26N4O5 |
| Molecular Weight | 498.53 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 4 |
Related Fmoc Standards
- Fmoc-Bph2C-OH (CAS 1381787-76-3)
- Fmoc-β-Ala-D-Trp-OH (CAS 1998701-40-8)
- Fmoc-β-Ala-Trp-OH (CAS 1998701-30-6)
- Fmoc-Cys(NPys)-OH (CAS 159700-51-3)
- Fmoc-His(3-Bom)-OH (CAS 84891-19-0)
- Fmoc-D-Ser(PO(OBzl)OH)-OH (CAS 1212481-01-0)
- Fmoc-Ser(PO(OBzl)OH)-OH (CAS 158171-14-3)
- Fmoc-L-valyl-L-citrulline (CAS 159858-21-6)
Recommended Standards
- Boc-Thr(Gly-Fmoc)-OH (CAS 944283-25-4)
- Omarigliptin Impurity 4 (CAS 1226781-87-8)
- Boc-Ser(Ala-Fmoc)-OH (CAS 944283-07-2)
- Omarigliptin Impurity 12 (CAS 1819364-05-0)
- 3,6-Dichloro-4-(trifluoromethyl)benzoic acid (CAS 189338-32-7)
- n-(5-Chloro-2-methylphenyl)-2-((cyclobutylmethyl)amino)acetamide (CAS 1154379-11-9)
- 3-(3,5-Dimethyl-1h-pyrazol-1-yl)-N-isobutylpropanamide (CAS 1280862-78-3)
- 3-Methyl-2-phenyl-2,3-dihydrobenzo[d]thiazole (CAS 16192-33-9)
- Iopamidol Impurity 35 (CAS CATO-C4X-145035)
- 9,10-Bis(4-ethoxyphenyl)-2-chloroanthracene (CAS 135965-21-8)
- 3-(2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)benzoyl)benzonitrile (CAS 898755-85-6)
- Tramadol Impurity 18 (CAS 22204-88-2)
- Ethyl 3,5-dimethylpiperazine-1-carboxylate (CAS 26865-01-0)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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