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66722-54-1

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66722-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66722-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,2 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66722-54:
(7*6)+(6*6)+(5*7)+(4*2)+(3*2)+(2*5)+(1*4)=141
141 % 10 = 1
So 66722-54-1 is a valid CAS Registry Number.

66722-54-1Relevant articles and documents

Rare earth metal trifluoromethanesulfonates catalyzed benzyl-etherification.

Kawada, Atsushi,Yasuda, Kayo,Abe, Hitoshi,Harayama, Takashi

, p. 380 - 383 (2007/10/03)

Rare earth metal trifluoromethanesulfonates [rare earth metal triflate, RE(OTf)3] were found to be efficient catalyst for benzyl-etherification. In the presence of a catalytic amount of RE(OTf)3, condensation of benzyl alcohols and aliphatic alcohols proceeded smoothly to afford the benzyl ethers. The condensation between benzyl alcohols and thiols also proceeded, and thio ethers were obtained in good yield. In these reactions, RE(OTf)3 could be recovered easily after the reactions were completed and could be reused without loss of activity.

PHENOXY- AMINO-PROPANOLS

-

, (2008/06/13)

New phenoxy-amino-propanols of formula STR1 wherein R 1 is alkenyl, alkynyl, alkoxyalkyl or alkenyloxyalkyl with 2-6 C atoms in each case or cycloalkyl with 3-8 C atoms; and R 2 is alkyl or hydroxyalkyl with 1-6 C atoms in each case, cycloalkyl with 3-8 C atoms, aralkyl or aralkyl wherein the aryl radical is mono-to tri-substituted by alkyl, alkoxy, OH, F and/or Cl or mono-substituted by methylenedioxy, with a total of 7-15 C atoms in each case, and the physiologically acceptable acid addition salts thereof, exhibit various pharmacological properties including isoprenaline-antagonism on the heart rate and blood pressure.

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