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7135-31-1

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7135-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7135-31-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,3 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7135-31:
(6*7)+(5*1)+(4*3)+(3*5)+(2*3)+(1*1)=81
81 % 10 = 1
So 7135-31-1 is a valid CAS Registry Number.

7135-31-1Relevant articles and documents

REACTION OF 3-INDOLYLPHENYLIODONIUM BETAINE WITH ELECTROPHILIC AGENTS

Budylin, V. A.,Ermolenko, M. S.,Chugtai, F. A.,Sharbatyan, P. A.,Kost, A. N.

, p. 1095 - 1097 (2007/10/02)

3-Indolylphenyliodonium chloride and bromide, respectively, were obtained by the action of hydrochloric and hydrobromic acids on 3-indolylphenyliodonium betaine.Pyrolysis of the chloride leads to a mixture of 2- and 3-chloroindoles,while pyrolysis the bromine leads only to 3-bromoindole. 1-Benzyl-2-chloroindole is obtained in the reaction of the betaine with benzyl chloride.The betaine reacts with dimethylsulfate to give an iodonium salt, the reaction of wich with lithium chloride and ammonium chloride leads to 1-methyl-2-chloroindole.

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