N-(Azido-PEG3)-N-Fluorescein-PEG4-acid CAS 2100306-72-5
| CAS No. | 2100306-72-5 |
| Molecular Formula | C40H49N5O14S |
| Molecular Weight | 855.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-(Azido-PEG3)-N-Fluorescein-PEG4-acid (CAS 2100306-72-5), a certified reference material (molecular formula C40H49N5O14S, MW 855.91 g/mol) for analytical method development and quality control.
N-(Azido-PEG3)-N-Fluorescein-PEG4-acid (C40H49N5O14S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), N-(Azido-PEG3)-N-Fluorescein-PEG4-acid 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 | C40H49N5O14S |
| Molecular Weight | 855.91 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related N Standards
- N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) (CAS 2093152-79-3)
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6-biotinamidocaproyl)-L-lysinyl]ethyl Methanethiosulfonate (CAS 1356383-18-0)
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6 -biotinamidocaproyl)-L-lysinyl]ethyl 2-Carboxyethyl Disulfide (CAS 1356841-73-0)
- N-(Azido-PEG3)-N-bis(PEG4-Boc) (CAS 2353409-58-0)
- N-(Azido-PEG3)-N-Fluorescein-PEG3-acid (CAS 2100306-50-9)
- Azido-PEG20-alcohol (CAS 1637297-21-2)
- N-(Azido-PEG2)-N-bis(PEG4-Boc) (CAS 2112731-81-2)
- Azido-PEG4-Amido-tri-(t-butoxycarbonylethoxymethyl)-methane (CAS 1421933-29-0)
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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