Fluorescein-thiourea-PEG6-acid CAS 2055014-69-0
| CAS No. | 2055014-69-0 |
| Molecular Formula | C36H42N2O13S |
| Molecular Weight | 742.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Fluorescein-thiourea-PEG6-acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Fluorescein-thiourea-PEG6-acid (CAS 2055014-69-0), molecular formula C36H42N2O13S and molecular weight 742.79 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-thiourea-PEG6-acid is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 742.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Fluorescein-thiourea-PEG6-acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C36H42N2O13S |
| Molecular Weight | 742.79 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.) | 1997 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fluorescein Standards
- Fluorescein Dimer Impurity 3 (isomeric mixture) (CAS CATO-C4X-290011)
- Fluorescein-PEG5-acid (CAS 2183440-40-4)
- Fluorescein-6-carbonyl-Val-Ala-DL-Asp(OMe)-fluoromethylketone (N-1915.0500) (CAS 560094-66-8)
- Fluorescein-PEG5-NHS ester (CAS 2353409-62-6)
- Fluorescein-PEG3-NH-Boc (CAS 1807534-77-5)
- Fluorescein-DBCO (CAS 2054339-00-1)
- Fluorescein di-β-D-glucopyranoside (CAS 129787-66-2)
- Fluorescein di-β-D-galactopyranoside (CAS 17817-20-8)
Recommended Standards
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com