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752201-70-0

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752201-70-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 752201-70-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,2,2,0 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 752201-70:
(8*7)+(7*5)+(6*2)+(5*2)+(4*0)+(3*1)+(2*7)+(1*0)=130
130 % 10 = 0
So 752201-70-0 is a valid CAS Registry Number.

752201-70-0Upstream product

752201-70-0Downstream Products

752201-70-0Relevant articles and documents

Synthesis and conformational analysis of 1,3,2-diazaphosphorino[6,1-a] isoquinolines, a new ring system

Zalán, Zita,Martinek, Tamás A.,Lázár, László,Fül?p, Ferenc

, p. 9117 - 9125 (2003)

Through ring-closure reactions of N- or 1′-substituted 1-(2′-aminoethyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines (5a-e) with phenylphosphonyl dichloride, 1- or 3-substituted 4-phenyl-1,3,4,6,7,11b- tetrahydro-2H-1,3,2-diazaphosphorino[6,1-a]isoquinolin-4-one diastereomers (7a-e and 8a-c,e), the first representatives of a new ring system, were prepared. The diastereomeric ratios in the cyclizations and the conformer (A-E) populations of the nitrogen-bridged tricyclic systems (7 and 8) were strongly influenced by the N- and 1′-substituents of the starting diamines. The conformational analysis of compounds 7 and 8 was performed by 1H, 13C and 31P NMR methods.

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