Fmoc-PEG5-NHS ester CAS 1402080-11-8
| CAS No. | 1402080-11-8 |
| Molecular Formula | C32H40N2O11 |
| Molecular Weight | 628.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C32H40N2O11, Fmoc-PEG5-NHS ester contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 628.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Fmoc-PEG5-NHS ester (CAS 1402080-11-8), molecular formula C32H40N2O11 and molecular weight 628.67 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-PEG5-NHS ester 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 | C32H40N2O11 |
| Molecular Weight | 628.67 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-D-Pro-D-Pro-D-Pro-D-Pro-OH (CAS 1926163-34-9)
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- Fmoc-3-benzoyl-erythro-sphingosine (CAS 676485-58-8)
- Fmoc-Tyr(tBu)-OPfp (CAS 86060-93-7)
- Fmoc-D-Tyr(tBu)-OPfp (CAS 403601-79-6)
- Fmoc-D-Lys(Mtt)-OH (CAS 198544-94-4)
- Fmoc-Lys(Mtt)-OH (CAS 167393-62-6)
- Fmoc-D-Gln(Mtt)-OH (CAS 200638-37-5)
Recommended Standards
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- 1,2,4,5-Tetrachloro-3-methyl-6-nitrobenzene (CAS 22490-21-7)
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- Ethyl 3-bromo-4-(diallylamino)benzoate (CAS 1211511-06-6)
- 3-Amino-n-(3-fluorophenyl)benzamide (CAS 251446-40-9)
- (R)-4-(tert-Butyl)-2-(1,8-naphthyridin-2-yl)-4,5-dihydrooxazole (CAS 2757082-56-5)
- N-(6-(1-Ethoxyvinyl)pyridazin-3-yl)acetamide (CAS 1313712-40-1)
- Penbutolol Impurity 13 (CAS 32396-10-4)
- Lamotrigine Impurity 13 (CAS CATO-C4X-167213)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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