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139577-59-6

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139577-59-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139577-59-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,7 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139577-59:
(8*1)+(7*3)+(6*9)+(5*5)+(4*7)+(3*7)+(2*5)+(1*9)=176
176 % 10 = 6
So 139577-59-6 is a valid CAS Registry Number.

139577-59-6Relevant articles and documents

Synthesis of 10-substituted "open-chain" analogues of 5,10-dideaza-5,6,7,8-tetrahydrofolic acid (DDATHF, lometrexol)

Taylor, Edward C.,Schrader, Thomas H.,Walensky, Loren D.

, p. 19 - 32 (2007/12/18)

Several novel and very potent folate antimetabolites, structurally based upon our previously described "open-chain" version of DDATHF but carrying 1-carbon substituents in the 10-position, have been synthesized. A key synthetic sequence involving a pallad

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