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226989-99-7

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226989-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 226989-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,9,8 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 226989-99:
(8*2)+(7*2)+(6*6)+(5*9)+(4*8)+(3*9)+(2*9)+(1*9)=197
197 % 10 = 7
So 226989-99-7 is a valid CAS Registry Number.

226989-99-7Relevant articles and documents

Antineoplastic agents. 410. Asymmetric hydroxylation of trans- combretastatin A-4

Pettit, George R.,Toki, Brian E.,Herald, Delbert L.,Boyd, Michael R.,Hamel, Ernest,Pettit, Robin K.,Chapuis, J. Charles

, p. 1459 - 1465 (2007/10/03)

The South African willow tree Combretum caffrum has yielded a number of potent cancer cell growth inhibitors. The present SAR studies of the antineoplastic agent combretastatin A-4 (1c) were focused mainly on the olefinic bridge to determine the effects o

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