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1034356-04-1

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1034356-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1034356-04-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,4,3,5 and 6 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1034356-04:
(9*1)+(8*0)+(7*3)+(6*4)+(5*3)+(4*5)+(3*6)+(2*0)+(1*4)=111
111 % 10 = 1
So 1034356-04-1 is a valid CAS Registry Number.

1034356-04-1Downstream Products

1034356-04-1Relevant articles and documents

Selective β-hydroxyethylation at the N-1 position of a pyrazolone: Synthesis of benzyl 1-(β-hydroxyethyl)-5-methyl-3-oxo-2-phenyl-2,3-dihydro- 1H-pyrazole-4-carboxylate

Siegmund, Aaron,Retz, Daniel,Xi, Ning,Dominguez, Celia,Bürli, Roland,Liu, Longbin

, p. 1005 - 1008 (2008)

Selective 2-hydroxyethylation at the N-1 position of benzyl 5-methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylate with epoxides was achieved using either AlMe3 or Mg(ClO4)2 under mild conditions. The epoxide ring opening was both regioselective and stereospecific. Moderate to excellent yields were obtained from mono- and disubstituted epoxides with the exception of cis-dimethyl-2-butene oxide that gave only a trace amount of the product. Georg Thieme Verlag Stuttgart.

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