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133943-22-3

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133943-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133943-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,4 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133943-22:
(8*1)+(7*3)+(6*3)+(5*9)+(4*4)+(3*3)+(2*2)+(1*2)=123
123 % 10 = 3
So 133943-22-3 is a valid CAS Registry Number.

133943-22-3Relevant articles and documents

ANTIMALARIAL ARTEMISININ ANALOGS: SYNTHESIS OF 2,3-DESETHANO-12-DEOXOARTEMISININ-RELATED COMPOUNDS

Imakura, Yasuhiro,Hachiya, Katsutoshi,Ikemoto, Tomomi,Kabayashi, Shigeru,Yamashita, Shinsuke,et al.

, p. 2125 - 2129 (2007/10/02)

2,3-Desethano-12-deoxoartemisinin-related compounds ((+)-16a) and ((-)-16b) have been synthesized from R-(+)-citronellal (7) by a stereoselective manner, which is applied to the synthesis of various novel antimalarial artemisinin analogs.

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