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49829-22-3

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49829-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49829-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,2 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 49829-22:
(7*4)+(6*9)+(5*8)+(4*2)+(3*9)+(2*2)+(1*2)=163
163 % 10 = 3
So 49829-22-3 is a valid CAS Registry Number.

49829-22-3Upstream product

49829-22-3Downstream Products

49829-22-3Relevant articles and documents

REACTION OF ALKYL ARENESULFONATES WITH LIQUID SULFUR TRIOXIDE AND AROMATIC HYDROCARBONS

Moskvichev, Yu. A.,Shapiro, Yu E.,Kramerova, S. K.,Sizyk, L. A.,Shutova, I.V.,et al.

, p. 284 - 289 (2007/10/02)

The reaction of sulfur trioxide with methyl 4-toluenesulfonate leads to the formation of p-CH3C6H4SO2(OSO2)nOCH3 (n=1,2) compounds.Investigation of the composition of the products from the reaction of this mixture with aromatic hydrocarbons showed that the diaryl sulfones in this case are formed by a pyrosulfonate mechanism.The optimum conditions for the synthesis of diaryl sulfones were selected.

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