55727-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55727-40-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,2 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55727-40:
(7*5)+(6*5)+(5*7)+(4*2)+(3*7)+(2*4)+(1*0)=137
137 % 10 = 7
So 55727-40-7 is a valid CAS Registry Number.
55727-40-7Relevant articles and documents
METHODS FOR ONE-POT N-DEMETHYLATION/N-ACYLATION OF MORPHINE AND TROPANE ALKALOIDS
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Page/Page column 4; 7, (2009/01/24)
The present invention provides a method for the N-demethylation and/or N-acylation of an N-methylated heterocycle such as morphine alkaloids or tropane alkaloids. The method comprises reacting the heterocycle with an acylating agent in the presence of a m
