15222-53-4 Usage
General Description
1-Hydroxy-3,6-dimethoxy-8-methyl-9H-xanthen-9-one, also known as fluoroscein, is a fluorescent dye commonly used in biological and chemical research. This complex organic compound has a xanthenone core with multiple functional groups including hydroxyl and methoxy groups, which contribute to its fluorescent properties. Fluorescein is widely used as a fluorescent tracer in medical and biological applications, such as staining cells and tissues for microscopic examination. It is also used in chemical testing and in the production of various colored dyes. Additionally, it is used as a coloring agent in food and cosmetics. Due to its versatile applications and bright green fluorescence, 1-Hydroxy-3,6-dimethoxy-8-methyl-9H-xanthen-9-one remains an indispensable tool in scientific and industrial fields.
Check Digit Verification of cas no
The CAS Registry Mumber 15222-53-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,2,2 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15222-53:
(7*1)+(6*5)+(5*2)+(4*2)+(3*2)+(2*5)+(1*3)=74
74 % 10 = 4
So 15222-53-4 is a valid CAS Registry Number.
InChI:InChI=1/C16H14O5/c1-8-4-9(19-2)6-12-14(8)16(18)15-11(17)5-10(20-3)7-13(15)21-12/h4-7,17H,1-3H3
15222-53-4Relevant articles and documents
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Asahina,Nogami
, p. 202,206 (1942)
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Synthesis of Grisa-2',5'-dien-3,4'-diones by Intramolecular ipso-Substitution
Sargent, Melvyn
, p. 285 (2007/10/02)
Appropriately substituted o-phenoxybenzoic esters on treatment with dry hydrogen chloride and titanium(IV) chloride in dichloromethane yield grisa-2',5'-dien-3,4'-diones by intramolecular ipso-substitution.
