Fmoc-Lys(Fmoc)-Lys(Fmoc)-OH CAS CATO-CPTD788974
| CAS No. | CATO-CPTD788974 |
| Molecular Formula | C57H56N4O9 |
| Molecular Weight | 941.08 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 Fmoc-Lys(Fmoc)-Lys(Fmoc)-OH.
CATO supplies Fmoc-Lys(Fmoc)-Lys(Fmoc)-OH (CAS CATO-CPTD788974), a certified reference material (molecular formula C57H56N4O9, MW 941.08 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Fmoc-Lys(Fmoc)-Lys(Fmoc)-OH is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 941.08 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 | C57H56N4O9 |
| Molecular Weight | 941.08 g/mol |
| 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) | 32.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Fmoc Standards
- Fmoc-MMAE (CAS 474645-26-6)
- Fmoc-Gly3-Val-Cit-PAB-PNP (CAS 2647914-16-5)
- Fmoc-PEG12-NHS ester (CAS 2227246-92-4)
- Fmoc-Tyr(PO3(MDPSE)2)-OH (CAS 158817-11-9)
- Fmoc-D-Cys(Trt)-D-Cys(Trt)-OH (CAS CATO-CPTD788290)
- Fmoc-Cys(Trt)-Cys(Trt)-OH (CAS CATO-CPTD788303)
- Fmoc-Asn(Trt)-Asn(Trt)-OH (CAS 844641-64-1)
- Fmoc-Asn(Trt)-Asn(Trt)-OH (CAS CATO-CPTD788472)
Recommended Standards
- Rifalazil (CAS 129791-92-0)
- Biotin-PEG12-NHS ester (CAS 1934296-88-4)
- [4-[2-[Bis(tricyclo[3.3.1.13,7]dec-1-yl)phosphino-κP]phenyl]morpholine][1,1,1-trifluoro-N-[(trifluoromethyl)sulfon (CAS 1631714-76-5)
- EZ-Link NHS-PEG12-Biotin (CAS 365441-71-0)
- 3,5-Dimethoxy-4-(propan-2-yl)aniline hydrochloride (CAS 1432680-55-1)
- 4-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4-oxobutanoic acid (CAS 5934-14-5)
- 3-Cyclopropoxy-5-iodoisonicotinamide (CAS 1243353-99-2)
- 2-Chloro-n,n-bis(propan-2-yl)propanamide (CAS 90477-06-8)
- [5]Cycloparaphenylene (CAS 96100-94-6)
- (1R,2R)-1-((tert-butoxycarbonyl)amino)-2-phenylcyclopropane-1-carboxylic acid (CAS 180322-86-5)
- Bacopaside II (CAS 382146-66-9)
- (1E)-1-(3-methyl-1-benzofuran-2-yl)ethanone oxime (CAS 344287-22-5)
- 6,7-Dihydro-2H-isoindol-4(5H)-one (CAS 113880-79-8)
- Peptide Impurity 04 (CAS 2913424-91-4)
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