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1241777-72-9

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1241777-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1241777-72-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,1,7,7 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1241777-72:
(9*1)+(8*2)+(7*4)+(6*1)+(5*7)+(4*7)+(3*7)+(2*7)+(1*2)=159
159 % 10 = 9
So 1241777-72-9 is a valid CAS Registry Number.

1241777-72-9Relevant articles and documents

Enantioselective total synthesis of eudistomidins G, H, and I

Ishiyama, Haruaki,Yoshizawa, Kazuaki,Kobayashi, Jun'ichi

experimental part, p. 6186 - 6192 (2012/08/27)

Asymmetric first total synthesis of eudistomidins G, H, and I, tetrahydro-β-carboline alkaloids from the Okinawan marine tunicate Eudistoma glaucus, has been accomplished with the Bischler-Napieralski reaction and the Noyori catalytic asymmetric hydrogen-transfer reaction. The absolute configurations of eudistomidins G, H, and I were confirmed from comparison of the 1H and 13C NMR, and CD spectral data of synthetic and natural eudistomidins G, H, and I, respectively.

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