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690624-51-2

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690624-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690624-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,2 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 690624-51:
(8*6)+(7*9)+(6*0)+(5*6)+(4*2)+(3*4)+(2*5)+(1*1)=172
172 % 10 = 2
So 690624-51-2 is a valid CAS Registry Number.

690624-51-2Downstream Products

690624-51-2Relevant articles and documents

Use of molecular weight-enlarged catalysts in a process for asymmetric, continous hydrogenation, novel molecular weight-enlarged ligands and catalysts

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, (2008/06/13)

The first embodiment of the present invention provides a process, which includes: in a continuous process in a membrane reactor, asymmetrically hydrogenating at least one C=C, C=N or C=O double bond with a catalyst. Another embodiment of the present invention provides a ligand, which includes at least one di-1,3-aminophosphine homochiral active center; optionally, a linker; and a molecular weight-enlarging polymer; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer; and wherein the linker is defined in the claims. Another embodiment of the present invention provides a process for preparing the above-noted ligand, and a catalyst that includes the above-noted ligand.

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