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257288-32-7

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257288-32-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257288-32-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,2,8 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 257288-32:
(8*2)+(7*5)+(6*7)+(5*2)+(4*8)+(3*8)+(2*3)+(1*2)=167
167 % 10 = 7
So 257288-32-7 is a valid CAS Registry Number.

257288-32-7Relevant articles and documents

Synthesis and antitumor activity of puupehedione and related compounds

Barrero, Alejandro F.,Alvarez-Manzaneda, Enrique J.,Chahboun, Rachid,Cortes,Armstrong

, p. 15181 - 15208 (2007/10/03)

The first enantiospecific synthesis of bioactive marine puupehedione (2) and related compounds from (-)-sclareol (11) is reported. The antitumor activity of these compounds was assayed and compared with that of the natural products.

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