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51985-42-3

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51985-42-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51985-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,8 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 51985-42:
(7*5)+(6*1)+(5*9)+(4*8)+(3*5)+(2*4)+(1*2)=143
143 % 10 = 3
So 51985-42-3 is a valid CAS Registry Number.

51985-42-3Relevant articles and documents

Synthesis and structure-activity relationship study of lamellarin derivatives

Ishibashi, Fumito,Tanabe, Shinji,Oda, Tatsuya,Iwao, Masatomo

, p. 500 - 504 (2007/10/03)

Ten derivatives (3-12) of marine alkaloid lamellarin D (1) were synthesized and evaluated for cytotoxicity against a HeLa cell line in an effort to examine their structure-activity relationships. It appeared that the hydroxyl groups at positions C-8 and C-20 of 1 were important structural requirements for cytotoxic activity, while the hydroxyl group at C-14 and the two methoxy groups at C-13 and C-21 were not necessary for the activity.

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