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57606-63-0

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57606-63-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57606-63-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,0 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57606-63:
(7*5)+(6*7)+(5*6)+(4*0)+(3*6)+(2*6)+(1*3)=140
140 % 10 = 0
So 57606-63-0 is a valid CAS Registry Number.

57606-63-0Relevant academic research and scientific papers

Methanesulfonic acid/phosphorus oxychloride (MAPO) as a new efficient reagent in the fries rearrangement

Kaboudin, Babak

, p. 12865 - 12872 (1999)

Methanesulfonic acid/phosphorus oxychloride (MAPO) was found to be a new efficient reagent in the Fries rearrangement of phenolic esters. Fries rearrangement of phenolic esters in the presence of MAPO, gave acylaryl methane sulfonates as major products.

CH3SO3H/P2O5 (4:1) as an efficient reagent for the one-pot synthesis of acylaryl methane sulfonates of phenolic

Kaboudin

, p. 887 - 892 (2007/10/03)

Methansulfonic acid/di-phosphorus pentoxide (4:1) was found to be an efficient reagent for one-pot synthesis of acylaryl methane sulfonates of phenolic esters via Fries rearrangement. This method is easy, rapid, and high-yielding reactions for the synthesis of acylaryl methane sulfonates.

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