Biotin-4-Fluorescein CAS 1032732-74-3
| CAS No. | 1032732-74-3 |
| Molecular Formula | C33H32N4O8S |
| Molecular Weight | 644.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Biotin-4-Fluorescein (C33H32N4O8S) 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).
Biotin-4-Fluorescein (CAS 1032732-74-3) is a high-purity analytical reference standard with the molecular formula C33H32N4O8S and a molecular weight of 644.69 g/mol.
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 Biotin-4-Fluorescein 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 | C33H32N4O8S |
| Molecular Weight | 644.69 g/mol |
| Purity | >95% |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- Rimegepant Impurity 71 (CAS CATO-C4X-248771)
- 2-Amino-7,7-dimethyl-7,8-dihydro-5H-pyrano[3,4-b]pyrazin-5-one (CAS 2673369-23-6)
- 3-(5-(Trifluoromethyl)-1H-indol-3-yl)propanoic acid (CAS 7394-75-4)
- Methyl 2-chloro-4-cyclopropylbenzoate, 97% (CAS 875307-09-8)
- 2-(Benzo[d][1,3]dioxol-5-yl)benzofuran-3-amine (CAS 1269534-56-6)
- (S)-2-(3-Pyrrolidinyl)-2-propanol Hydrochloride (CAS 1273577-45-9)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
Why CATO?
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