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1026651-89-7

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1026651-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026651-89-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,6,5 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1026651-89:
(9*1)+(8*0)+(7*2)+(6*6)+(5*6)+(4*5)+(3*1)+(2*8)+(1*9)=137
137 % 10 = 7
So 1026651-89-7 is a valid CAS Registry Number.

1026651-89-7Relevant articles and documents

Total Synthesis of the Claimed Structure of (±)-Hyptinin and Structural Revision of Natural Hyptinin

Maeda, Kazuto,Hamada, Toshiyuki,Onitsuka, Satoaki,Okamura, Hiroaki

, p. 1446 - 1449 (2017)

A total synthesis of (±)-hyptinin was achieved via a convergent route using the key phosphonate, cyclic ketone, and aryl Grignard components. The 1H and 13C NMR spectra of natural hyptinin did not agree with those of the synthesized

Synthesis of a benzolactone collection using click chemistry

Ritschel, Jan,Sasse, Florenz,Maier, Martin E.

, p. 78 - 87 (2007/10/03)

A collection of benzotriazoles consisting of seven compounds was prepared from the propynyl-substituted benzolactone 1 and various azides using click chemistry. The lactone 1 was obtained through a short route by direct esterification of the allylbenzoic

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