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1355049-19-2

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1355049-19-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1355049-19-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,5,0,4 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1355049-19:
(9*1)+(8*3)+(7*5)+(6*5)+(5*0)+(4*4)+(3*9)+(2*1)+(1*9)=152
152 % 10 = 2
So 1355049-19-2 is a valid CAS Registry Number.

1355049-19-2Relevant articles and documents

Synthesis of indolin-2-one, isoindolin-1-one, and indole derivatives from homophthalic acid

Kilikli, Alper A.,Dengiz, Cagatay,Oezcan, Sevil,Balci, Metin

, p. 3697 - 3705 (2011/12/21)

We hereby report the preparation of indolin-2-one and isoindolin-1-one and their derivatives starting from 2-(carboxymethyl)benzoic acid, which was first regiospecifically converted into the isomeric half esters. Transformation of the acid functionalities to the acyl azides followed by Curtius rearrangement gave the regioisomeric isocyanates. Reaction of the isocyanates with aniline produced urethane derivatives. Intramolecular cyclization provided the target compounds. Georg Thieme Verlag Stuttgart. New York.

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