Cas 91956-39-7,2H-Pyrrole, 2,2,5-trimethyl-3-phenyl-

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Check Digit Verification of cas no

The CAS Registry Mumber 91956-39-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,5 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91956-39:
(7*9)+(6*1)+(5*9)+(4*5)+(3*6)+(2*3)+(1*9)=167
167 % 10 = 7
So 91956-39-7 is a valid CAS Registry Number.

91956-39-7Upstream product

91956-39-7Downstream Products

124994-50-9 2,2,5-trimethyl-3-phenyl-2H-pyrrole 1-oxide

91956-39-7Relevant academic research and scientific papers

Nitrones and Oxaziridines. XXXIX Conversion of 1-Pyrroline 1-Oxides into 2H-Pyrroles through the Hetero-Cope Rearrangement

Black, David, St.C.,Strauch, Richard J.

, p. 71 - 78 (2007/10/02)

The 1-pyrroline 1-oxides (1) undergo a hetero-Cope rearrangement to give variously the 2H-pyrroles (2) and/or the 3-benzoyloxy-1-pyrrolines (3).The esters (3) can be hydrolysed to the corresponding alcohols (4).

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