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80407-74-5

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80407-74-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80407-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,0 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80407-74:
(7*8)+(6*0)+(5*4)+(4*0)+(3*7)+(2*7)+(1*4)=115
115 % 10 = 5
So 80407-74-5 is a valid CAS Registry Number.

80407-74-5Relevant articles and documents

Lysine and Ornithine Analogues of Methotrexate as Inhibitors of Dihydrofolate Reductase

Kempton, Robert J.,Black, Angelique M.,Anstead, Gregory M.,Kumar, A. Ashok,Blankenship, Dale T.,Freisheim, James H.

, p. 475 - 477 (2007/10/02)

The ornithine (6a) and lysine (6b) analogues of methotrexate (1) have been synthesized via condensation of 4-amino-4-deoxy-N10-methylpteroic acid (2) with Nδ-carbobenzoxy-L-ornithine tert-butyl ester (3a) and Nε-carbobenzo

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