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103042-48-4

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103042-48-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103042-48-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,0,4 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 103042-48:
(8*1)+(7*0)+(6*3)+(5*0)+(4*4)+(3*2)+(2*4)+(1*8)=64
64 % 10 = 4
So 103042-48-4 is a valid CAS Registry Number.

103042-48-4Relevant articles and documents

METHOD FOR PREPARING 1,6:2,3-DIANHYDRO-BETA-D-MANNOPYRANOSE

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Page/Page column 4, (2011/09/20)

The invention relates to a method for preparing 1,6:2,3-dianhydro-a-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alykyl group and R′ is an activating agent, in an alcohol/alcoholate mixture und

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