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549537-01-1

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549537-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 549537-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,3 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 549537-01:
(8*5)+(7*4)+(6*9)+(5*5)+(4*3)+(3*7)+(2*0)+(1*1)=181
181 % 10 = 1
So 549537-01-1 is a valid CAS Registry Number.

549537-01-1Downstream Products

549537-01-1Relevant articles and documents

Combining Eosin y with Selectfluor: A Regioselective Brominating System for Para-Bromination of Aniline Derivatives

Huang, Binbin,Zhao, Yating,Yang, Chao,Gao, Yuan,Xia, Wujiong

, p. 3799 - 3802 (2017)

A mild, metal-free, and absolutely para-selective bromination of aniline derivatives has been developed in excellent yields, wherein the organic dye Eosin Y is employed as the bromine source in company with Selectfluor. Neither air nor moisture sensitive, this facile reaction proceeds smoothly at room temperature and completes within a short time. Mechanistic studies indicate a radical pathway; therefore, the existence of an in situ generated brominating reagent, "Selectbrom", is postulated, which may reasonably account for the unique regioselectivity for the para-bromination of N-acyl- as well as N-sulfonylanilines.

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