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900530-20-3

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900530-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900530-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,3 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 900530-20:
(8*9)+(7*0)+(6*0)+(5*5)+(4*3)+(3*0)+(2*2)+(1*0)=113
113 % 10 = 3
So 900530-20-3 is a valid CAS Registry Number.

900530-20-3Relevant articles and documents

Furan ring opening-indole ring closure: Recyclization of 2-(2-aminophenyl)furans into 2-(2-oxoalkyl)indoles

Pilipenko, Arkady S.,Mel'Chin, Vladimir V.,Trushkov, Igor V.,Cheshkov, Dmitry A.,Butin, Alexander V.

experimental part, p. 619 - 627 (2012/01/05)

The acid-catalyzed rearrangement of 5-alkyl-2-[2-(sulfonylamino)phenyl] furans into 2-(2-oxoalkyl)indoles is described. When the N-sulfonyl group in the starting compounds was displaced by an N-acyl group, the corresponding indoles were not formed under t

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