Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide CAS 957494-27-8

Purity 97%+In StockPharmaceutical Standards
CAS No.957494-27-8
Molecular FormulaC33H44N4O8S
Molecular Weight656.79 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide CAS 957494-27-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide.

Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide (CAS 957494-27-8) is a high-purity analytical reference standard with the molecular formula C33H44N4O8S and a molecular weight of 656.79 g/mol.

Based on its molecular formula C33H44N4O8S, Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 656.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Biotin-(5-fluorescein)-conjugate 957494-27-8 Biotin-4-Fluorescein B4F N-(Biotinylamidoethyl)-fluorescein-5-carboxamide N-(Fluorescein-5-carbamidoethyl)biotinamide 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 FormulaC33H44N4O8S
Molecular Weight656.79 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms4
Sulfur Atoms1

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