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40668-26-6

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40668-26-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40668-26-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,6,6 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40668-26:
(7*4)+(6*0)+(5*6)+(4*6)+(3*8)+(2*2)+(1*6)=116
116 % 10 = 6
So 40668-26-6 is a valid CAS Registry Number.

40668-26-6Downstream Products

40668-26-6Relevant articles and documents

A novel iodine-promoted tandem cyclization: An efficient synthesis of substituted 3,4-diiodoheterocyclic compounds

Ji, Ke-Gong,Zhu, Hai-Tao,Yang, Fang,Shu, Xing-Zhong,Zhao, Shu-Chun,Liu, Xue-Yuan,Shaukat, Ali,Liang, Yong-Min

supporting information; experimental part, p. 6151 - 6154 (2010/07/05)

(Figure Presented) Iodine sets allenes ringing: A novel iodine-promoted tandem cyclization reaction of but-2-yne-1,4-diol and 4aminobut-2-yn-l-ol derivatives leading to substituted 3, 4-diiodoheterocyclic compounds has been developed (see scheme). In this

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