721943-05-1 Usage
Appearance
White to off-white crystalline powder
Purity
At least 97%
Category
Chemical compound
Usage
Building block in organic synthesis
Application
Research and laboratory settings
Derivative of
Phthalimide
Role
Starting material for the synthesis of various pharmaceuticals and other organic compounds
Functional group
Ethoxycarbonyl group
Utility
Useful reagent for the preparation of amides and other carbonyl compounds
Primary use
Research and development of organic compounds
Presence in consumer products
Not typically found
Check Digit Verification of cas no
The CAS Registry Mumber 721943-05-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,9,4 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 721943-05:
(8*7)+(7*2)+(6*1)+(5*9)+(4*4)+(3*3)+(2*0)+(1*5)=151
151 % 10 = 1
So 721943-05-1 is a valid CAS Registry Number.
721943-05-1Relevant articles and documents
PROCESS FOR THE PREPARATION OF RETIGABINE OF THE FORMULA I AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
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Page/Page column 39, (2013/03/26)
The invention relates to process for the preparation of 2-amino-4-(4- fluorobenzylamino)-l-ethoxycarbonylaminobenzene generically known as Retigabine of the formula (I) and its pharmaceutically acceptable salts e.g. Formula IA, particularly to the modification over the prior art processes-I and II disclosed therein in US5384330. The modifications are depicted in the scheme I and scheme II respectively. Disclosed herein are also the novel processes for the preparation of intermediates of formulae M, N and O of the process-I and of formulae R, S, T of process-II, those are used for preparation of Retigabine of the formula I and its pharmaceutically acceptable salts thereof.
