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76339-61-2

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76339-61-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76339-61-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,3,3 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 76339-61:
(7*7)+(6*6)+(5*3)+(4*3)+(3*9)+(2*6)+(1*1)=152
152 % 10 = 2
So 76339-61-2 is a valid CAS Registry Number.

76339-61-2Upstream product

76339-61-2Relevant articles and documents

Synthesis and Reactions of Arylcarbonic Fluorosulfonic Anhydrides

Effenberger, Franz,Huthmacher, Klaus,Keil, Michael

, p. 1967 - 1971 (2007/10/02)

In dichloromethane at 0 deg C, the acyl fluorides 3 insert sulfur trioxide to form the thermolabile acylcarbonic fluorosulfonic anhydrides 4 in good yield.Acylation of non-activated arenes with the anhydrides 4 is impossible since they decompose upon warming into constituent compounds; with the SO3 thus liberated, diarylsulfones 6 are formed.

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