137956-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137956-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,5 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137956-29:
(8*1)+(7*3)+(6*7)+(5*9)+(4*5)+(3*6)+(2*2)+(1*9)=167
167 % 10 = 7
So 137956-29-7 is a valid CAS Registry Number.
137956-29-7Relevant articles and documents
Methanesulfonic acid/phosphorus oxychloride (MAPO) as a new efficient reagent in the fries rearrangement
Kaboudin, Babak
, p. 12865 - 12872 (2007/10/03)
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.
