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133593-18-7

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133593-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133593-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,9 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133593-18:
(8*1)+(7*3)+(6*3)+(5*5)+(4*9)+(3*3)+(2*1)+(1*8)=127
127 % 10 = 7
So 133593-18-7 is a valid CAS Registry Number.

133593-18-7Relevant articles and documents

Convenient and selective synthesis of 4-trifluoromethylimidazoles

Kamitori, Yasuhiro,Hojo, Masaru,Masuda, Ryoichi,Kawamura, Yoshihiko,Fang, Xie

, p. 2103 - 2106 (2007/10/02)

Thermally induced cyclization of 3-aryl-1, 1, 1-trifluoropropane-2, 3-dione 2-dimethylhydrazones (5) which can be readily prepared from corresponding arenecarbaldehydes afforded selectively the title compounds (3) in high yields without formation of the r

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