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117081-21-7

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117081-21-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117081-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,0,8 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117081-21:
(8*1)+(7*1)+(6*7)+(5*0)+(4*8)+(3*1)+(2*2)+(1*1)=97
97 % 10 = 7
So 117081-21-7 is a valid CAS Registry Number.

117081-21-7Downstream Products

117081-21-7Relevant articles and documents

Reactions of Phosphonium Ylides with S8 or Se in the Presence of Amines. Formation of Thioaldehydes or Selenoaldehydes

Okuma, Kentaro,Komiya, Yasuo,Ohta, Hiroshi

, p. 1145 - 1148 (1988)

The reaction of phosphonium ylides with elemental sulfur gave thioaldehydes which were successfully changed to corresponding thioamides when treated with secondary amines.On the other hand, the reaction of selenoaldehydes with secondary amines afforded bis(dialkylamino)methanes in good yields.

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