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1421257-50-2

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1421257-50-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421257-50-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,2,5 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421257-50:
(9*1)+(8*4)+(7*2)+(6*1)+(5*2)+(4*5)+(3*7)+(2*5)+(1*0)=122
122 % 10 = 2
So 1421257-50-2 is a valid CAS Registry Number.

1421257-50-2Downstream Products

1421257-50-2Relevant articles and documents

An Ireland-Claisen rearrangement/RCM based approach for the construction of the EF-ring of ciguatoxin 3C

Nogoshi, Keisuke,Domon, Daisuke,Fujiwara, Kenshu,Kawamura, Natsumi,Katoono, Ryo,Kawai, Hidetoshi,Suzuki, Takanori

, p. 676 - 680 (2013)

The EF-ring of ciguatoxin 3C, a marine toxin from the dinoflagellate Gambierdiscus toxicus, was stereoselectively synthesized by iterative use of a cyclic ether formation process based on chirality-transferring Ireland-Claisen rearrangement and ring-closing olefin metathesis.

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