Cas 155665-57-9,C20H17N5O2S2

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Check Digit Verification of cas no

The CAS Registry Mumber 155665-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,6 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155665-57:
(8*1)+(7*5)+(6*5)+(5*6)+(4*6)+(3*5)+(2*5)+(1*7)=159
159 % 10 = 9
So 155665-57-9 is a valid CAS Registry Number.

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155665-57-9Relevant academic research and scientific papers

SYNTHESIS AND REACTIONS OF SEVERAL NEW 2-THIAZOLIN-4-ONYL HYDRAZIDOYL HALIDES

Ismail, Nabila A.,Fekry, Reda M.,Eldin, Sanaa M.,Abdel-Azim, Yassir N.

, p. 109 - 118 (2007/10/02)

Several new hydrazidoyl halides containing the 2-thiazolin-4-one moiety were synthesised and reacted with several reagents to yield several additional heterocyclics.Structures were based on both elemental analysis and spectral data. Key words: Hydrazidoyl halides; 2-thiazolin-4-ones; thiazolinonylpyradiazinones; α-acetyl-α-cyanothioacetamide.

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