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90741-49-4

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90741-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90741-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,4 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90741-49:
(7*9)+(6*0)+(5*7)+(4*4)+(3*1)+(2*4)+(1*9)=134
134 % 10 = 4
So 90741-49-4 is a valid CAS Registry Number.

90741-49-4Relevant articles and documents

Synthetic and Stereochemical Studies Directed Towards Anatoxin-a

Huby, Nicholas J. S.,Kinsman, Richard G.,Lathbury, David,Vernon, Peter G.,Gallagher, Timothy

, p. 145 - 155 (2007/10/02)

The synthesis and stereocontrolled Ag1-catalysed cyclisation of a series of allenic amino esters 8a-e is described.For compounds 8a-d the cis-2,5-disubstituted pyrrolidine 9 is formed exclusively but the primary amine 8e undergoes cyclisation n

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