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1182705-22-1

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1182705-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1182705-22-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,2,7,0 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1182705-22:
(9*1)+(8*1)+(7*8)+(6*2)+(5*7)+(4*0)+(3*5)+(2*2)+(1*2)=141
141 % 10 = 1
So 1182705-22-1 is a valid CAS Registry Number.

1182705-22-1Downstream Products

1182705-22-1Relevant articles and documents

MANUFACTURE OF BISOPROLOL AND INTERMEDIATES THEREFOR

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Page/Page column 6-7, (2010/06/17)

A process for preparing bisoprolol comprises reacting oxazolidinone sulphonate with 4-hydroxybenzylaldehyde to form oxazolidinone benzaldehyde, forming oxazolidone benzylalcohol from oxazolidone benzaldehyde, and subsequently reacting oxazolidinone benzylalcohol with isopropyl oxitol to form bisoprolol base. Oxazolidone sulphonate and oxazolidone benzaldehyde are novel intermediates.

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