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176702-19-5

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176702-19-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176702-19-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,7,0 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 176702-19:
(8*1)+(7*7)+(6*6)+(5*7)+(4*0)+(3*2)+(2*1)+(1*9)=145
145 % 10 = 5
So 176702-19-5 is a valid CAS Registry Number.

176702-19-5Downstream Products

176702-19-5Relevant articles and documents

An efficient use of Oppolzer sultam for diastereospecific synthesis of cis-β-lactams

Srirajan,Puranik, Vedavati G.,Deshmukh,Bhawal, Baburao M.

, p. 5579 - 5584 (2007/10/03)

Diastereospecific synthesis of cis-β-Lactams (6a-g) has been achieved in ketene-imine cycloaddition reaction (Staudinger reaction) by using homochiral ketene precursors 3 and 4 derived from Oppolzer sultam, in very good yields.

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