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1097701-31-9

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1097701-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1097701-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,7,7,0 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1097701-31:
(9*1)+(8*0)+(7*9)+(6*7)+(5*7)+(4*0)+(3*1)+(2*3)+(1*1)=159
159 % 10 = 9
So 1097701-31-9 is a valid CAS Registry Number.

1097701-31-9Downstream Products

1097701-31-9Relevant articles and documents

Enantioselective synthesis of [7]helicene: Dramatic effects of olefin additives and aromatic solvents in asymmetric olefin metathesis

Grandbois, Alain,Collins, Shawn K.

, p. 9323 - 9329 (2008)

The asymmetric synthesis of [7]helicene was accomplished in good ee (80%) by kinetic resolution by means of asymmetric olefin metathesis. Three key factors contributed to the success of the kinetic resolution: the use of new Rubased olefin metathesis catalysts bearing C1-symmetric N-heterocyclic carbene ligands, simple olefins as additives to control the nature of the propagating alkylidene and hexafluorobenzene as a solvent.

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