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22690-19-3

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22690-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22690-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,6,9 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22690-19:
(7*2)+(6*2)+(5*6)+(4*9)+(3*0)+(2*1)+(1*9)=103
103 % 10 = 3
So 22690-19-3 is a valid CAS Registry Number.

22690-19-3Relevant articles and documents

Bromochlorination of Alkenes with Dichlorobromate (1-) ion. IV. Regiochemistry of Bromochlorinations of Alkenes with Molecular Bromine Chloride and Dichlorobromate (1-) Ion

Negoro, Takeshi,Ikeda, Yoshitsugu

, p. 2547 - 2552 (2007/10/02)

The regioselectivity of the addition of molecular bromine chloride to alkenes is dependent on both the steric and electronic effects of the alkyl substituent.In contrast, the regioselectivity of the addition of dichlorobromate (1-) ion to alkenes is controlled mainly by the steric effect of the substituent.

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