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99763-41-4

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99763-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99763-41-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,6 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99763-41:
(7*9)+(6*9)+(5*7)+(4*6)+(3*3)+(2*4)+(1*1)=194
194 % 10 = 4
So 99763-41-4 is a valid CAS Registry Number.

99763-41-4Relevant articles and documents

REACTION OF α-(3-INDOLYL)NITRONES WITH ARYL ISOCYANATES INCLUDING MIGRATION OF THE INDOLE RESIDUE

Velezheva, V. S.,Yaroslavskii, I. S.,Suvorov, N. N.

, p. 544 - 548 (2007/10/02)

When heated with aryl isocyanates, α-(3-indolyl)-N-aryl(alkyl)nitrones are converted into N-aryl-N'-aryl(alkyl)-N'-(3-indolyl)amidines.Subsequent hydrolysis of the N,N'-diphenyl-N'-(3-indolyl)amidine leads to 3-indolylformamide and 3-phenylaminoindole hydrochloride.When heated with acetic anhydride both with and without sodium acetate, the same nitrones are converted into the corresponding amides of 3-indolecarboxylic acid.The amide and ring nitrogen atoms are acylated simultaneously.N-Methyl-3-indolecarboxamide was obtained by the irradiation of α-(3-indolyl)-N-methylnitrone.

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