99307-36-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99307-36-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,0 and 7 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 99307-36:
(7*9)+(6*9)+(5*3)+(4*0)+(3*7)+(2*3)+(1*6)=165
165 % 10 = 5
So 99307-36-5 is a valid CAS Registry Number.
99307-36-5Relevant articles and documents
Synthesis of N-demethyl-N-substituted-14-hydroxycodeine and morphine derivatives
Hosztafi,Simon,Makleit
, p. 2527 - 2541 (2007/10/02)
A few representatives (1b-d) of a novel group of structurally related morphine-antagonist compounds have been prepared in stereochemically homogeneous form. The employed procedures involve O-demethylation either of the corresponding codeine derivatives 2b