23531-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23531-95-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,3 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23531-95:
(7*2)+(6*3)+(5*5)+(4*3)+(3*1)+(2*9)+(1*5)=95
95 % 10 = 5
So 23531-95-5 is a valid CAS Registry Number.
InChI:InChI=1/C17H16O4/c1-5-17(2,3)13-15-11(8-9-20-15)14(19-4)10-6-7-12(18)21-16(10)13/h5-9H,1H2,2-4H3
23531-95-5Relevant articles and documents
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Murray,Lawrie
, p. 697,698 (1979)
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A Facile Ring-opening of Coumarins: Synthesis of Furopinnarin
Kaul, S. K.,Sehgal, C. K.,Taneja, S. C.,Dhar, K. L.,Atal, C. K.
, p. 472 - 474 (2007/10/02)
A facile synthesis of furopinnarin through ring-opening of coumarin is achieved in high yield.The ring opening has been successfully applied on a number of coumarins and furocoumarins to generalise the reaction.
