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128217-54-9

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128217-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128217-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,1 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128217-54:
(8*1)+(7*2)+(6*8)+(5*2)+(4*1)+(3*7)+(2*5)+(1*4)=119
119 % 10 = 9
So 128217-54-9 is a valid CAS Registry Number.

128217-54-9Relevant articles and documents

Nickel-promoted alkylative or arytative carboxylation of alkynes

Takimoto, Masanori,Shimizu, Kazuya,Mori, Miwako

, p. 3345 - 3347 (2001)

Formula presented Nickel-promoted alkylative or arylative carboxylation of terminal alkynes via a carbon dioxide fixation process was investigated. In the presence of a stoichiometric amount of a zero-valent nickel complex, the reaction of alkynes with CO

A total synthesis of the unique tris-oxazole macrolide ulapualide a produced by the marine nudibranch Hexabranchus sanguineus

Chattopadhyay, Shital K.,Pattenden, Gerald

, p. 2429 - 2454 (2007/10/03)

A total synthesis of ulapualide A (1), whose relative stereochemistry was assigned on the basis of an earlier molecular mechanics study of its hypothetical metal chelated complex 9, is described. The synthesis is based on: i, elaboration of the double fun

A Diels-Alder approach to Stemona alkaloids: Total synthesis of stenine

Chen,Hart

, p. 3840 - 3849 (2007/10/02)

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