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111509-98-9

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111509-98-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111509-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,5,0 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 111509-98:
(8*1)+(7*1)+(6*1)+(5*5)+(4*0)+(3*9)+(2*9)+(1*8)=99
99 % 10 = 9
So 111509-98-9 is a valid CAS Registry Number.

111509-98-9Relevant articles and documents

Polarized Ethylenes. IV. Synthesis of Polarized Ethylenes Using Thioamides and Methyl Dithiocarboxylates and their Application to Syntheses of Pyrazoles, Pyrimidines, Pyrazolopyrimidines, and 5-Azacyclazines

Tominaga, Yoshinori,Matsuoka, Yoshiki,Oniyama, Yukio,Uchimura, Yoshimitsu,Komiya, Hirofumi,et al.

, p. 647 - 660 (2007/10/02)

Polarized ethylenes having both electron-donating (an amino or a methylthio group) and electron-accepting (cyano, carbamoyl, methyl ester) groups on the adjacent two olefinic carbon atoms were prepared by the condensation of S-alkylthioamidinium salts or

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