89438-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89438-33-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,3 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89438-33:
(7*8)+(6*9)+(5*4)+(4*3)+(3*8)+(2*3)+(1*3)=175
175 % 10 = 5
So 89438-33-5 is a valid CAS Registry Number.
89438-33-5Relevant articles and documents
Reactions of N-(1-Alkinyl)anilines with Sulfonylacetylenes
Kosack, Steffen,Himbert, Gerhard
, p. 71 - 78 (2007/10/02)
The N-(1-alkinyl)anilines 8 react with sulfonylacetylenes 9 to give the 2-anilino-5-sulfinylfurans 10.The possible mechanism of this reaction, which is similar to the Pummerer reaction, is discussed.
