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81095-88-7

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81095-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81095-88-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,9 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81095-88:
(7*8)+(6*1)+(5*0)+(4*9)+(3*5)+(2*8)+(1*8)=137
137 % 10 = 7
So 81095-88-7 is a valid CAS Registry Number.

81095-88-7Downstream Products

81095-88-7Relevant articles and documents

N-Hydroxytryptophan in the Synthesis of Natural Products Containing Oxidized Dioxopiperazines. An Approach to the Neoechinulin and Sporidesmin Series

Ottenheijm, Harry C.J.,Plate, Ralf,Noordik, Jan H.,Herscheid, Jacobus D.M.

, p. 2147 - 2154 (1982)

N-Hydroxytryptophan derivatives have been synthesized via two routes.In one procedure, the indole-3-pyruvate oximes 14b,c were reduced with trimethylamine-borane in the presence of ethanolic HCl to give 18 (Scheme III); aminolysis of the latter afforded 1

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