136205-88-4

Basic information

• Product Name: Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)-, methyl ester
• CAS NO: 136205-88-4
• Molecular Formula: C21H16O5
• Molecular Weight: 348.355
• Mol File: 136205-88-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)-, methyl ester(136205-88-4)
• EPA Substance Registry System: Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)-, methyl ester(136205-88-4)

Safety Data

• Hazardous Substances Data: 136205-88-4(Hazardous Substances Data)

Upstream product

• 2321-07-5 fluorescein 
• 67-56-1 methanol 
• 70672-06-9 methyl 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoate 

Relevant articles and documents

Fluorescent and colorimetric detection of acid vapors by using solid-supported rhodamine hydrazides

Rhodamine hydrazide-based chemosensors that can detect volatile acidic gases in solid state have been developed. The rhodamine hydrazide probes adsorbed on filter paper respond fluorescently and colorimetrically only to volatile acidic gases but not to organic bases nor to other volatile organic compounds (VOCs). Diethyl chlorophosphate (DCP), one of model compounds used for the studies of Chemical Warfare Agent (CWA), could also be detected by using this method.

Preparation method of kit and application of kit to protein fluorescence labeling

The invention discloses a preparation method of a kit and application of the kit in protein fluorescence labeling, and particularly relates to the technical field of protein detection. The preparationmethod comprises the following steps: (1) synthesis of fluorescein methyl ester; (2) synthesis of 6-oxo-monomaleate monoester-9-(2'-methoxycarbonyl)fluorescein; and (3) synthesis of the 6-oxo-(N-hydroxysuccinimide maleic acid monoester)-9-(2'-methoxycarbonyl)fluorescein. The preparation method can be used for preparing a novel protein fluorescence labeling reagent, and the novel protein fluorescence labeling reagent has the advantages of high labeling product stability, high labeling efficiency, high fluorescence quantum yield, short labeling time and simple reaction conditions during labeling.