(Fmoc-Cys-OtBu)2 (Disulfide bond) CAS 139592-37-3
| CAS No. | 139592-37-3 |
| Molecular Formula | C44H48N2O8S2 |
| Molecular Weight | 797.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C44H48N2O8S2, (Fmoc-Cys-OtBu)2 (Disulfide bond) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 797.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(Fmoc-Cys-OtBu)2 (Disulfide bond) (CAS 139592-37-3), molecular formula C44H48N2O8S2 and molecular weight 797.00 g/mol, is a CATO reference standard with documented purity and traceability.
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), (Fmoc-Cys-OtBu)2 (Disulfide bond) 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 | C44H48N2O8S2 |
| Molecular Weight | 797.00 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Fmoc Standards
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- Fmoc-Lys(palmitoyl-Glu-OtBu)-OH (CAS 1491158-62-3)
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Recommended Standards
- (Phe1,Ser2,Tyr6)-PAR-1 (1-6) amide (human) (CAS 245329-02-6)
- RMC6236 Intermediate23 (CAS CATO-CIM-103911)
- Tetraethyl 4,4’,4’’,4’’’-[[2,2’-Bi(1,3-dithiolylidene)]-4,4’,5,5’-tetrayl]tetrabenzoate (CAS 1356336-61-2)
- RMC6236 (CAS CATO-CIM-103914)
- 2-Isobutanoyl-3-picoline (CAS 1247742-50-2)
- 1-((3S,4R)-3-Hydroxy-2,2-dimethyl-6-(phenylsulfonyl)chroman-4-yl)pyrrolidin-2-one (CAS 132014-21-2)
- 2,4,6-Tris(bromomethyl)-1,3,5-triazine (CAS 30361-99-0)
- 2-mercaptopyrimidine (CAS 1450-85-7)
- (S)-1-Methylpyrrolidine-2-carbonyl chloride (CAS 911281-86-2)
- 1-(4-Sulfobutyl)pyridin-1-ium trifluoromethanesulfonate (CAS 855785-75-0)
- 2-{2-[4-(1H-1,2,3,4-tetrazol-5-yl)phenoxy]ethoxy}ethan-1-ol (CAS 439109-47-4)
- 1,6-Hexamethylenebis(triphenylphosphonium bromide) (CAS 22884-32-8)
- 2-(4-Chlorophenyl)butanoic acid (CAS 29645-00-9)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
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