91991-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91991-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,9 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91991-54:
(7*9)+(6*1)+(5*9)+(4*9)+(3*1)+(2*5)+(1*4)=167
167 % 10 = 7
So 91991-54-7 is a valid CAS Registry Number.
91991-54-7Relevant articles and documents
STRUKTUR UND SYNTHESE VON N-(ACETOXY)-JASMONOYLPHENYLALANINMETHYLESTER AUS PRAXELIS CLEMATIDEA
Bohlmann, Ferdinand,Wegner, Peter,Jakupovic, Jasmin,King, Robert M.
, p. 2537 - 2540 (1984)
From Praxelis clematidea a phenylalanine derivative has been isolated, its structure being elucidated by spectroscopic methods and confirmed by synthesis.