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3,3-dibromo-1-phenyl-indolin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

856337-27-4

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856337-27-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 856337-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,3,3 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 856337-27:
(8*8)+(7*5)+(6*6)+(5*3)+(4*3)+(3*7)+(2*2)+(1*7)=194
194 % 10 = 4
So 856337-27-4 is a valid CAS Registry Number.

856337-27-4Relevant articles and documents

Synthesis of 3,3-Dihalo-2-oxindoles from 2-Substituted Indoles via Halogenation–Decarboxylation/Desulfonamidation–Oxidation Process

Jiang, Xiaojian,Zhang, Feng,Yang, Junjie,Yu, Pei,Yi, Peng,Sun, Yewei,Wang, Yuqiang

, p. 3938 - 3942 (2016)

A novel one-pot reaction which combines halogenation, decarboxylation/desulfonamidation with oxidation has been developed. Diverse valuable 3,3-dihalo-2-oxindole compounds can be produced rapidly and safely with isolated yields of up to 98% under mild conditions. (Figure presented.).

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