93839-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93839-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,3 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 93839-21:
(7*9)+(6*3)+(5*8)+(4*3)+(3*9)+(2*2)+(1*1)=165
165 % 10 = 5
So 93839-21-5 is a valid CAS Registry Number.
InChI:InChI=1/C14H11N3O4/c15-13(18)9-1-5-11(6-2-9)16-14(19)10-3-7-12(8-4-10)17(20)21/h1-8H,(H2,15,18)(H,16,19)
93839-21-5Relevant articles and documents
Development of optimised synthesis of 4-amino-N-(4-carbamoylphenyl) benzamide for industrial application
Pejchal, Vladimir,Imramovsky, Ales
, p. 2237 - 2244 (2013)
An efficient two-step synthetic route for preparation of the important Pigment Yellow 181 intermediate 4-amino-N-(4-carbamoylphenyl)benzamide is described. The synthetic pathway reflects requirements that are important for industrial applications. Optimis