Fluorescein-PEG3-NH-Boc CAS 1807534-77-5
| CAS No. | 1807534-77-5 |
| Molecular Formula | C34H39N3O10S |
| Molecular Weight | 681.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fluorescein-PEG3-NH-Boc (CAS 1807534-77-5), molecular formula C34H39N3O10S and molecular weight 681.75 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Fluorescein-PEG3-NH-Boc is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 681.75 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.
As a certified reference material (CRM), Fluorescein-PEG3-NH-Boc 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 | C34H39N3O10S |
| Molecular Weight | 681.75 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Fluorescein Standards
- Fluorescein-6-carbonyl-Val-Ala-DL-Asp(OMe)-fluoromethylketone (N-1915.0500) (CAS 560094-66-8)
- Fluorescein-DBCO (CAS 2054339-00-1)
- Fluorescein-PEG5-acid (CAS 2183440-40-4)
- Fluorescein di-β-D-glucopyranoside (CAS 129787-66-2)
- Fluorescein di-β-D-galactopyranoside (CAS 17817-20-8)
- Fluorescein-PEG4-acid (CAS 1807518-76-8)
- Fluorescein-thiourea-PEG4-azide (CAS 1454662-54-4)
- Fluorescein Dimer Impurity 3 (isomeric mixture) (CAS CATO-C4X-290011)
Recommended Standards
- Tadalafil Impurity 98 (CAS CATO-C4X-108798)
- N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid (CAS 2183440-74-4)
- Suc-Ala-Lys-Pro-Phe-pNA (L-1630.0050) (CAS 128802-74-4)
- Arginine impurity 13 (CAS CATO-C4X-242413)
- 1-(2-Bromoethyl)-2,4-difluorobenzene (CAS 214618-54-9)
- (S)-Benzyl 3-((S)-2-amino-N-methylpropanamido)pyrrolidine-1-carboxylate (CAS 1401667-17-1)
- 5-bromo-6-fluoro-3-methyl-1H-indazole (CAS 864773-66-0)
- (2-(Difluoromethyl)-1H-pyrrol-1-yl)(phenyl)methanone (CAS 163811-28-7)
- 1-(methylamino)cyclobutane-1-carboxylic acid (CAS 1251391-67-9)
- 2-(3-Fluorophenoxy)ethanol (CAS 143915-17-7)
- 2-{5-bromopyrrolo[2,1-f][1,2,4]triazin-7-yl}ethan-1-amine (CAS 1781830-19-0)
- 2-(4-Chloropyridin-3-yl)acetic acid (CAS 1000567-15-6)
- 2-(4-phenylphenyl)aniline (CAS 76129-23-2)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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