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55407-89-1

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55407-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55407-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,4,0 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55407-89:
(7*5)+(6*5)+(5*4)+(4*0)+(3*7)+(2*8)+(1*9)=131
131 % 10 = 1
So 55407-89-1 is a valid CAS Registry Number.

55407-89-1Downstream Products

55407-89-1Relevant articles and documents

Reactions of Cyclic Oxalyl Compounds, XXXIV. Synthesis of Dibenzoylacetate-N-carboxyalkylamides and Semiempirical Calculations of Keto-Enol Tautomers

Fabian, Walter M. F.,Kollenz, Gert,Akcamur, Yunus,Koek, Tevfik Riza,Teczan, Makbule,et al.

, p. 265 - 276 (2007/10/02)

4-Benzoyl-5-phenylfuran-2,3-dione (1) and the urethanes 2 combine under loss of carbon monoxide yielding the open chain dibenzoylacetic acid derivatives 3 and 4. 3a, b only can be cyclized to the oxazinone 5.The keto-enole tautomerism 3 4 is further i

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