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52128-42-4

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52128-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52128-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,1,2 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 52128-42:
(7*5)+(6*2)+(5*1)+(4*2)+(3*8)+(2*4)+(1*2)=94
94 % 10 = 4
So 52128-42-4 is a valid CAS Registry Number.

52128-42-4Downstream Products

52128-42-4Relevant articles and documents

Folate Antagonists. 20. Synthesis and Antitumor and Antimalarial Properties of Trimetrexate and Related 6--2,4-quinazolinediamines

Elslager, Edward F.,Johnson, Judith L.,Werbel, Leslie M.

, p. 1753 - 1760 (2007/10/02)

A series of 6--2,4-quinazolinediamines have been prepared by catalytic hydrogenation of the requisite 2,4-diamino-6-quinazolinecarbonitriles in the presence of the appropiate benzenamine.Formylation, acetylation, and nitrosation provide

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