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84034-08-2

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84034-08-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84034-08-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,3 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84034-08:
(7*8)+(6*4)+(5*0)+(4*3)+(3*4)+(2*0)+(1*8)=112
112 % 10 = 2
So 84034-08-2 is a valid CAS Registry Number.

84034-08-2Relevant articles and documents

Synthesis of 3-Heteraryl Coumarins as Optical Brighteners

Annapurna, D.,Reddy, Y. D.,Somayajulu, V. V.

, p. 977 - 979 (2007/10/02)

A few 2-aryl and heterocyclic (6,7) coumarinoxazoles have been synthesised by condensing 6-amino-7-hydroxy-3-phenyl-4-methylcuomarin with aromatic and heterocyclic carboxylic acids with the aid of polyphosphoric acid.The ultraviolet, infrared, nmr, mass and fluorescence spectra of these compounds have been presented for characterisation.

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