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4-hydroxy-3,5-dimethoxy-benzenesulfonic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128612-52-2

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128612-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128612-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,1 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128612-52:
(8*1)+(7*2)+(6*8)+(5*6)+(4*1)+(3*2)+(2*5)+(1*2)=122
122 % 10 = 2
So 128612-52-2 is a valid CAS Registry Number.

128612-52-2Relevant academic research and scientific papers

Reactions of a series of methyl ethers of the trihydroxybenzenes and three dimethoxyphenyl methanesulfonates with sulfur trioxide. The effect of initial sulfation on the sulfonation product distribution

Cerfontain, Hans,Ansink, Harold R. W.,Coenjaarts, Norbert J.,Graaf, Erik J. de,Koeberg-Telder, Ankie

, p. 445 - 452 (2007/10/02)

The sulfation and sulfonation of a series of mono-, di-, and trimethyl ethers of the trihydroxybenzenes with SO3 have been studies and the product distributions are reported.As for the trimethoxybenzenes, 1,2,3-trimethoxybenzene (4) yields the 4-sulfonic

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