209911-00-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209911-00-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,1 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 209911-00:
(8*2)+(7*0)+(6*9)+(5*9)+(4*1)+(3*1)+(2*0)+(1*0)=122
122 % 10 = 2
So 209911-00-2 is a valid CAS Registry Number.
209911-00-2Relevant articles and documents
Cyclization Reactions of 2-(2-Chloro-4-nitrophenylsulfonyl)-1-(2-thienyl)ethanone
Fan, Ai-Long,Cao, Song,Xu, Jing-Hua,Zhang, Zheng
, p. 477 - 479 (1998)
A new sulfonyl group-containing heterocyclic compound 2-(2-chloro-4-nitrophenylsuIfonyl)-1-(2-thienyl)ethanone 2 was prepared from the corresponding sulfide 2-(2-chloro-4-nitrophenylthio)-1-(2-thienyl)ethanone 1. Two different cyclization reactions of the
