Cas 31201-20-4,p-methoxycarbonylphenylfluorone

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Check Digit Verification of cas no

The CAS Registry Mumber 31201-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,2,0 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 31201-20:
(7*3)+(6*1)+(5*2)+(4*0)+(3*1)+(2*2)+(1*0)=44
44 % 10 = 4
So 31201-20-4 is a valid CAS Registry Number.

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31201-20-4Relevant academic research and scientific papers

Synthesis, spectral study and crystal structure of a fluorescein derivative, p-methoxycarbonylphenyl fluorone

Kamino, Shinichiro,Kawamae, Yuko,Ijyuin, Megumi,Takada, Shingo,Yamaguchi, Takako,Doi, Mitsunobu,Fujita, Yoshikazu

, p. 1405 - 1408 (2009)

Protolytic equilibria of p-methoxycarbonylphenyl fluorone (PMCPF) in aqueous solutions were studied by spectrophotometry, and the species of PMCPF were determined. We describe for the first time the X-ray structure of the proton acceptor form of PMCPF.

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