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Benzoic acid, 4-(5-cyano-6-ethoxy-1-methyl-6-oxo-1-hexenyl)-, methyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139577-56-3

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139577-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139577-56-3 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 139577-56:
(8*1)+(7*3)+(6*9)+(5*5)+(4*7)+(3*7)+(2*5)+(1*6)=173
173 % 10 = 3
So 139577-56-3 is a valid CAS Registry Number.

139577-56-3Relevant academic research and scientific papers

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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