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74568-14-2

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74568-14-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74568-14-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,6 and 8 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74568-14:
(7*7)+(6*4)+(5*5)+(4*6)+(3*8)+(2*1)+(1*4)=152
152 % 10 = 2
So 74568-14-2 is a valid CAS Registry Number.

74568-14-2Relevant articles and documents

Stereochemistry of Reduction of the Vitamin Folic acid by Dihydrofolate Reductase

Charlton, Peter A.,Young, Douglas W.,Birdsall, Berry,Feeney, James,Roberts, Gordon C. K.

, p. 1349 - 1354 (2007/10/02)

Reduction of the vitamin folic acid (6) to the coenzyme 5,6,7,8-tetrahydrofolic acid (1) by the enzyme dihydrofolate reductase is shown to involve transfer of the 4-pro R hydrogen of NADPH to the same face at both C-6 and C-7 of the pteridine system (the re face at C-6 and the si face at C-7).The orientations of the pteridine system of folic acid (6) and of dihydrofolic acid (5) when bound to the enzyme are different from the orientation of the pteridine ring of the anti-cancer drug methotrexate (11) when bound to this enzyme.

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