74317-53-6

74317-53-6 structure

Name: Rhodamine B hydrazide
Chemical Name: 2-amino-3',6'-bis(diethylamino)spiro[isoindole-3,9'-xanthene]-1-one
CAS Number: 74317-53-6
Molecular Formula: C₂₈H₃₂N₄O₂
Molecular Weight: 456.58
Catalog: Research Areas Others
Create Date: 2018-10-04 22:29:23
Modify Date: 2025-08-26 11:42:05
Rhodamine B hydrazide is a good probe for sulfite, with colorless and non-fluorescent properties. While the emission is related to the concentration of sulfite (5-800 ng/mL; detection limit=1.4 ng/mL (3σ)). Sulfite reduces dissolved oxygen to yield superoxide radicals, which binds to Rhodamine B hydrazide to form Rhodamine B. Rhodamine B hydrazide gives Rhodamine B-like fluorescence in the presence of sulfite, which is enhanced by Tween 80 surfactant micelles. Rhodamine B hydrazide has an absorption maximum at 554 nm and a fluorescence emission maximum at 574 nm[1].

Name	2-amino-3',6'-bis(diethylamino)spiro[isoindole-3,9'-xanthene]-1-one
Synonyms	RhB hydrazide N-(rhodamine-B)hydrazide 2-amino-3',6'-bis(diethylamino)spiro[isoindoline-1,9'-xanthen]-3-one 2-amino-12,15-bis(diethylamino)spiro[isoindoline-3,9'-xanthene]-1-one hydrazine rhodamine N-(rhodamine-B) lactam-hydrazine Rhodamine B hydrazide

Description	Rhodamine B hydrazide is a good probe for sulfite, with colorless and non-fluorescent properties. While the emission is related to the concentration of sulfite (5-800 ng/mL; detection limit=1.4 ng/mL (3σ)). Sulfite reduces dissolved oxygen to yield superoxide radicals, which binds to Rhodamine B hydrazide to form Rhodamine B. Rhodamine B hydrazide gives Rhodamine B-like fluorescence in the presence of sulfite, which is enhanced by Tween 80 surfactant micelles. Rhodamine B hydrazide has an absorption maximum at 554 nm and a fluorescence emission maximum at 574 nm[1].
Related Catalog	Research Areas >> Others
References	[1]. Yang X F, et al. Novel spectrofluorimetric method for the determination of sulfite with rhodamine B hydrazide in a micellar medium[J]. Analytica Chimica Acta, 2002, 456(1): 121-128.