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121744-20-5

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121744-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121744-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,4 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121744-20:
(8*1)+(7*2)+(6*1)+(5*7)+(4*4)+(3*4)+(2*2)+(1*0)=95
95 % 10 = 5
So 121744-20-5 is a valid CAS Registry Number.

121744-20-5Downstream Products

121744-20-5Relevant articles and documents

Synthesis and Reaction of 1,2,4-Trioxanes

Fujisaka, Tomohiro,Miura, Masahiro,Nojima, Masatomo,Kusabayashi, Shigekazu

, p. 1031 - 1039 (2007/10/02)

The peroxides (1a-e) and epoxides (2a-g) in methylene dichloride were treated with tungsten (VI) oxide and then with catalitic amounts of chlorosulphonic acid to give the corresponding 1,2,4-trioxanes (3a-r) in 10-63percent yield.The mode of decomposition of the 1,2,4-trioxanes was studied by treating a number with the following reagents: triethylamine, sodium ethoxide, lithium di-isopropylamide, Grignard and lithium reagents, lithium aluminium hydride, anthrylsodium, triphenylphosphine, and titanium tetrachloride.

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