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203791-82-6

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203791-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203791-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,7,9 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 203791-82:
(8*2)+(7*0)+(6*3)+(5*7)+(4*9)+(3*1)+(2*8)+(1*2)=126
126 % 10 = 6
So 203791-82-6 is a valid CAS Registry Number.

203791-82-6Relevant articles and documents

Photochemical transformation of S-aryl 2-benzoylbenzothioates to 3-phenyl-3-arylthiobenzofuranones involving aryl migration

Takahashi, Masaki,Fujita, Tsutomu,Watanabe, Shoji,Sakamoto, Masami

, p. 487 - 491 (2007/10/03)

Photochemical reactions of S-aryl 2-benzoylbenzothioates 1 in solution media have been investigated. These thioesters undergo photoinduced cyclization to 3-aryl-3-arylthioisobenzofuranones 2 in yields of 14-46% upon direct irradiation. The photocyclizatio

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