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75822-69-4

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75822-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75822-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,8,2 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75822-69:
(7*7)+(6*5)+(5*8)+(4*2)+(3*2)+(2*6)+(1*9)=154
154 % 10 = 4
So 75822-69-4 is a valid CAS Registry Number.

75822-69-4Relevant articles and documents

Reaction of 3-aryl-1-(2-methyloxiran-2-yl)prop-2-en-1-ones with tosylhydrazine

Koval'chuk,Kuz'menok,Zvonok

, p. 1237 - 1244 (2007/10/03)

It was established that the reaction of 3-aryl-1-(2-methyloxiran-2-yl)prop- 2-en-1-ones with tosylhydrazine leads to 3-[(E)-2-arylvinyl]-4-methyl-1-tosyl- 1H-pyrazoles and 3-aryl-1-(2-methyloxiran-2-yl)-3-tosylpropan-1-ones. The latter are formed as a result of rearrangement of the intermediate hydrazino alcohols and/or addition of p-toluenesulfinic acid during reductive degradation of the tosylhydrazine. It was shown that the reaction of 3-aryl-1-(2-methyloxiran-2-yl) -3-tosylpropan-1-ones with an excess of tosylhydrazine leads to 3-(2-aryl-2-tosylethyl)-4-methyl-1-tosyl-1H-pyrazoles. 2005 Springer Science+Business Media, Inc.

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