≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Nalpha,Nalpha-Bis-Fmoc-L-cystine(Disulfide bond) is an Fmoc protected cysteine derivative potentially useful for proteomics studies, and solid phase peptide synthesis techniques. Cysteine is versatile amino acid involved with many biological processes, including the formation of disulfide bonds - a critical component of protein structure. This compound could be useful as an unusual amino acid analog to aid in the deconvolution of protein structure and function.
| Canonical Smiles | C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)NC(CSSCC(C(=O)O)NC(=O)OCC4C5=CC=CC=C5C6=CC=CC=C46)C(=O)O |
|---|---|
| IUPAC Name | (2R)-3-[[(2R)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]disulfanyl]-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid |
| InChIKey | IRQYKZZFOSDZHP-ACHIHNKUSA-N |
| INCHI | 1S/C36H32N2O8S2/c39-33(40)31(37-35(43)45-17-29-25-13-5-1-9-21(25)22-10-2-6-14-26(22)29)19-47-48-20-32(34(41)42)38-36(44)46-18-30-27-15-7-3-11-23(27)24-12-4-8-16-28(24)30/h1-16,29-32H,17-20H2,(H,37,43)(H,38,44)(H,39,40)(H,41,42)/t31-,32-/m0/s1 |
| Isomeric SMILES | C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)N[C@@H](CSSC[C@@H](C(=O)O)NC(=O)OCC4C5=CC=CC=C5C6=CC=CC=C46)C(=O)O |
| Molecular Weight | 684.79 |
| Reaxy-Rn | 7108590 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=7108590&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| Class | Fluorenes |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Fluorenes |
| Alternative Parents | Cysteine and derivatives Dicarboxylic acids and derivatives Carbamate esters Dialkyldisulfides Sulfenyl compounds Carboxylic acids Organonitrogen compounds Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | Fluorene - Cysteine or derivatives - Alpha-amino acid or derivatives - Dicarboxylic acid or derivatives - Carbamic acid ester - Organic disulfide - Dialkyldisulfide - Carboxylic acid derivative - Carboxylic acid - Sulfenyl compound - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Organosulfur compound - Carbonyl group - Aromatic homopolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as fluorenes. These are compounds containing a fluorene moiety, which consists of two benzene rings connected through either a cyclopentane, cyclopentene, or cyclopenta-1,3-diene. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 K2527596 | Certificate of Analysis | Sep 11, 2025 | N1492426 |
| L2501634 | Certificate of Analysis | Sep 11, 2025 | N1492426 |
| L2501635 | Certificate of Analysis | Sep 11, 2025 | N1492426 |
| L2501636 | Certificate of Analysis | Sep 11, 2025 | N1492426 |
| Refractive Index | n20D~1.67 (Predicted) |
|---|---|
| Molecular Weight | 684.800 g/mol |
| XLogP3 | 5.800 |
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 15 |
| Exact Mass | 684.16 Da |
| Monoisotopic Mass | 684.16 Da |
| Topological Polar Surface Area | 202.000 Ų |
| Heavy Atom Count | 48 |
| Formal Charge | 0 |
| Complexity | 1010.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
