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71602-46-5

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71602-46-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71602-46-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,0 and 2 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71602-46:
(7*7)+(6*1)+(5*6)+(4*0)+(3*2)+(2*4)+(1*6)=105
105 % 10 = 5
So 71602-46-5 is a valid CAS Registry Number.

71602-46-5Relevant academic research and scientific papers

Water-Soluble Acylating Agents: Preparation of 2-Acylthio-1-alkylpyridinium Salts and Acylation of Phenols, Acids, and/or Amines with These Salts in an Aqueous Phase

Sakakibara, Tohru,Watabe, Yukie,Yamada, Masahide,Sudoh, Rokuro

, p. 247 - 254 (2007/10/02)

Reaction of phenols, amines, and acids with 2-benzoylthio-1-methylpyridinium chloride prepared in situ from benzoyl chloride and 1-methyl-2(1H)-pyridinethione, afforded the corresponding benzoyl derivatives in good yields.In the reaction of p-nitrophenol, even catalytic amount of 1-methyl-2(1H)-pyridinethione proved to be effective.Similar reactions of p-nitrophenol with isobutyryl chloride and acetyl chloride in the presence of 1-methyl-2(1H)-pyridinethione afforded p-nitrophenyl isobutyrate and p-nitrophenyl acetate in 63 and 44percent yields, respectively. 2-Benzoylthio-, 2-acetylthio-, and 2-isobutyrylthio-1-ethylpyridinium tetrafluorobora tes were prepared by treatment of the corresponding 2-acylthiopyridines with triethyloxonium tetrafluoroborate.These pyridinium salts also acted as acylating agents in an aqueous phase. some competitive reactions of 2-aminoethanol and phenols with 2-benzoylthio-1-methylpyridinium chloride were also investigated.

Benzalicyclic carboxylic acid derivative

-

, (2008/06/13)

Compounds of the formula: SPC1 Wherein R1 is an aryl group which may be substituted, R2 is hydrogen or a lower alkyl group having 1 to 4 carbon atoms and n is 1 or 2, or derivatives at the carboxyl function thereof, are useful as medicines such as antipyretics, analgesics and anti-inflammatory agents.

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