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40722-02-9

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40722-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40722-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,2 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40722-02:
(7*4)+(6*0)+(5*7)+(4*2)+(3*2)+(2*0)+(1*2)=79
79 % 10 = 9
So 40722-02-9 is a valid CAS Registry Number.

40722-02-9Downstream Products

40722-02-9Relevant articles and documents

A new route to 1,4-disubstituted 5-thioxoperhydroimidazo[4,5-d]imidazol-2-ones

Verner, Ji?í,Taraba, Jan,Potá?ek, Milan

, p. 4833 - 4836 (2002)

1,4-Disubstituted 5-thioxoperhydroimidazo[4,5-d]imidazol-2-ones were prepared by one-pot criss-cross cycloaddition reactions of 1,4-disubstituted 1,4-diazabuta-1,3-dienes with HNCS and HNCO generated in situ from potassium salts by acetic acid.

SYNTHESIS OF IMIDAZOIMIDAZOLE-2,5-DITHIONES BY CRISSCROSS ADDITION REACTIONS OF 1,4-DIAZA-1,3-DIENES TO ISOTHIOCYANATOTRIMETHYLSILANE

Takahashi, Masahiko,Miyadai, Shinji

, p. 883 - 888 (2007/10/02)

Treatment of 1,4-disubstituted 1,4-diaza-1,3-dienes with isothiocyanatotrimethylsilane yielded crisscross addition products, 1,4-disubstituted tetrahydroimidazoimidazole-2,5-dithiones.

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