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117285-72-0

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117285-72-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117285-72-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,8 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117285-72:
(8*1)+(7*1)+(6*7)+(5*2)+(4*8)+(3*5)+(2*7)+(1*2)=130
130 % 10 = 0
So 117285-72-0 is a valid CAS Registry Number.

117285-72-0Relevant articles and documents

Syntheses of 6-acylcoumarins via highly regioselective fries rearrangements. Total syntheses of the linear acylated coumarins geijerin and dehydrogeijerin

Cairns, Nicholas,Harwood, Laurence M.,Astles, David P.

, p. 7581 - 7590 (2007/10/02)

Methyl 3-(2-acyloxy-4-methoxyphenyl)propanoates (7), prepared in high yield from 7-methoxycoumarin are key intermediates in general and efficient syntheses of 6-acylcoumarins. Under standard Fries rearrangement conditions (7) undergo highly regioselective

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