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93502-97-7

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93502-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93502-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,5,0 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 93502-97:
(7*9)+(6*3)+(5*5)+(4*0)+(3*2)+(2*9)+(1*7)=137
137 % 10 = 7
So 93502-97-7 is a valid CAS Registry Number.

93502-97-7Relevant articles and documents

Chemistry and Antitumor Evaluation of Selected Classical 2,4-Diaminoquinazoline Analogues of Folic Acid

Hynes, J.B.,Harmon, S.J.,Floyd, G.G.,Farrington, M.,Hart, L.D.,et al.

, p. 209 - 215 (2007/10/02)

A series of six 2,4-diaminoquinazoline analogues of folic acid which bear close structural resemblance to methotrexate, 1a, were synthesized by unequivocal routes.Three of these have not been described previously, while complete structural characterizatio

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